By Erik Boal, DyeStat Editor

Here are 10 storylines to keep an eye on Friday through Sunday at the 19th Pan American U20 Championships in Trujillo, Peru:

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Tara and Tia to tussle again; Davis seeks rare double

Agoura CA graduate Tara Davis produces a two-part storyline, first with her 100-meter hurdles rematch Friday against George Walton Comprehensive GA sophomore Tia Jones, then with her pursuit of another global long jump gold medal.

The United States has won three consecutive Pan Am U-20 gold medals in the 100 hurdles and whether it’s Davis or Jones, that streak is expected to reach four Friday.

Jones is the national high school record holder from last year’s USATF Junior Outdoor Championships at 12.84 and captured the bronze medal at the World U-20 Championships in Bydgoszcz, Poland. Davis boasts the fastest all-conditions mark by a prep female June 3 with her wind-aided 12.83 from the California state final.

American women have swept gold and silver in the 100 hurdles six times in the previous 18 editions of the biennial meet and barring a personal best from Ecuador’s Maribel Caicedo – the 2015 World Youth gold medalist in Cali, Colombia – that total could reach seven in the final.

Less than 30 minutes after the 100 hurdles final Friday, Davis will compete in the long jump, looking to capture the third consecutive gold medal for the U.S. and 10th overall. Davis is the World U-20 leader with her wind-legal 22-1.25 (6.73m) and boasts an all-conditions best of 22-3.75 (6.80m).

Davis, a Georgia signee, is not only attempting to become the only female long jumper to win both World U-18 and Pan Am U-20 gold medals, but looking to join Carlette Guidry – who doubled in the 200 and long jump in 1986 – as the only American women to win Pan Am U-20 individual titles in a track race and in a field event in the same year.

Shot put showdown for the ages

The men’s shot put has been the most successful individual event for the U.S. in the previous 18 editions of the biennial meet, with Americans capturing 15 gold medals and sweeping the top two spots nine times, including the past two competitions.

Knoch PA graduate Jordan Geist and Adrian Piperi, a star at The Woodlands TX, should not only add to those impressive totals, but both are in position to break the meet record with the 6-kilogram implement.

Geist won the title June 23 in Sacramento with an effort of 69-4.25 (21.14m) and Piperi was second at 68-3 (20.80m), despite competing with an injured foot. American Mason Finley set the record in 2009 with a mark of 66-9.75 (20.36m).

Piperi won the World U-18 shot put title in Colombia two years ago and was fifth in the World U-20 final last year in Poland. Geist is making his debut on a U.S. Junior national team.

Back for more

A pair of champions from 2015 in Edmonton, Alberta, Canada look to defend their gold medals, with the return of Khalifa St. Fort and Jamal Walton.

St. Fort, a star sprinter from Trinidad and Tobago, won the Pan Am U-20 women’s 100-meter title two years ago in 11.31. She has also captured a World U-18 silver medal in Colombia in 11.19 and a World U-20 bronze medal last year in Poland in 11.18.

St. Fort was looking toward a rematch with Candace Hill, the U.S. Junior champion. But Hill, an ASICS professional who won gold medals in Colombia and Poland, decided not to compete in Peru.

Instead, St. Fort, who attended St. Thomas Aquinas FL, will square off in the 100 and 200 with Miami Southridge graduate Symone Mason, who placed eighth for the U.S. in the 400 two years ago at the World U-18 final in Colombia.

No sprinter, male or female, has ever captured consecutive 100 gold medals in Pan Am U-20 history.

Walton, another Florida prep standout at Miramar High, returns after capturing the men’s 400 title in 46.09 representing the Cayman Islands.

Walton, who has a personal-best 45.70, will have his work cut out in order to become the first male athlete to capture consecutive Pan Am U-20 titles in the 400.

USC signee Zach Shinnick, a Damien CA graduate, won the U.S. Junior title June 24 in 45.20 and adidas professional Josephus Lyles was second in 45.74. Lyles enters the meet coming off a personal-best 45.42 on July 12 in Italy.

Florida signee Chantz Sawyers of High Point Christian Academy NC, representing Jamaica, has a personal-best 46.31 and fellow countryman Anthony Carpenter of Calabar High has run 46.53.

Terrific trio tackling 200

In addition of his pursuit for a 400 repeat, Jamal Walton is also entered in the 200, along with two more elite challengers for the title.

Christopher Taylor, who runs for Calabar High, won the 400 title in 2015 at the World U-18 Championships in Colombia and contributed to Jamaica’s bronze medal in the 4x400 relay at the World U-20 Championships last year in Poland.

Taylor has a personal-best 20.59 in the 200, with Walton entered at 20.57.

Miami Norland FL sophomore star Tyrese Cooper boasts the top entry time at 20.51, the fastest U-18 mark in the world this year and sixth among U-20 athletes. Walton is eighth and Taylor is 10th.

Cooper is looking to follow the success two years ago of Noah Lyles, who became the first American to win the Pan Am U-20 men’s 200 title since 2007.

Heptathletes with multiple opportunities

A quartet of heptathletes who have excelled at New Balance Nationals, the Great Southwest Classic and Arcadia Invitational in the past two years are all seeking their first global medals.

Yet, the most capable female in the field could be Cuba’s Adriana Rodriguez Fuentes, who placed sixth in the 2015 World U-18 Championships in Colombia and captured a silver medal last year at the World U-20 Championships with 5,925 points.

Texas A&M signee Tyra Gittens of The Ensworth School, a 17-time state champion in Tennessee, is representing Trinidad and Tobago after breaking her own national U-20 record by accumulating 5,490 points July 3-4 at the Pan American Combined Events Cup in Ottawa, Canada.

Canadian talent Dallyssa Huggins, fourth at the Big 10 Championships with 5,307 points during her freshman year at Maryland, also competed at the 2015 World U-18 Championships in Colombia.

Americans Ariel Okorie and Tierra Crockrell are also in contention to secure medals.

Okorie, third at the Big 12 Championships as a Kansas State freshman, is looking to follow Texas’ Ashtin Zamzow, who captured the Pan Am U-20 gold medal for the U.S. in 2015 in Canada. Okorie had a personal-best 5,266 points to rally past Crockrell, the youngest member of the U.S. roster after accumulating 5,149 points to place second.

Crockrell, a Calabasas CA sophomore, is looking to eclipse the national sophomore record of 5,170 points set in 2011 by Georgia’s seven-time NCAA champion Kendell Williams.

Extending streak to elite eight

The longest individual winning streak for the U.S. in Pan Am U-20 competition is in the men’s 400 hurdles, including a sweep of the top two spots in the past three meets.

The Americans should feel good about their potential to stretch that run of success to eight consecutive gold medals with World U-20 leader Quincy Hall, a two-year college star at College of the Sequoias, Calif.

Hall clocked 49.39 on April 8 at the Sun Angel Classic in Arizona and ranks No. 14 in the U.S. this year and 52nd overall in the world. The meet record is 49.31 set in 2009 by American William Wynne.

Florida signee Cory Poole of East Orange NJ, who ranks fourth on the World U-20 list at 49.88, could help the Americans capture gold and silver for the fourth straight Pan Am Junior competition and ninth time overall.

Hall, who has also run 45.12 in the open 400, has the potential to help the U.S. win a fifth straight gold medal in the 4x400 relay.

Their time to shine

With Union Cathlolic NJ graduate Sydney McLaughlin, a Kentucky signee who won the World U-18 title in 2015 and made the Olympic semifinals last year in Rio de Janeiro, and USC freshman Anna Cockrell – the 2015 Pan Am U-20 winner and World U-20 champion last year – both having moved to the senior level in the women’s 400 hurdles, three rising international talents have an opportunity to secure their first global gold medal.

Florida freshman Brandee' Johnson, who secured bronze for the U.S. at the World U-18 Championships in 2015, and Canada’s Xahria Santiago – World U-20 bronze medalist last year – are expected to be in contention, along with Jamaica’s Nicolee Foster, who reached the World U-20 semifinals last year in Poland. Johnson was also at the World U-20 Championships in Poland, but didn’t advance out of the heats.

Bullis MD junior Masai Russell also has the opportunity to earn a medal for the Americans after running a personal-best 57.55 in the U.S. Junior final June 24.

Seeking more hurdling history

Eric Edwards Jr. of Houston Langham Creek TX is the fastest all-time high school junior in the men’s 110 hurdles at 13.32.

Oregon signee Joseph Anderson, an Upland CA graduate, boasts the California prep record at 13.33.

And they could help the Americans add another impressive chapter to one of their strongest events at the biennial event.

The U.S. has captured gold 11 times in the meet’s previous 18 editions, sweeping the top two spots six times, the most recent achievement in 2011.

Cuba’s Yoan A. Villa Rendueles could play spoiler with a personal-best 13.45. Canada’s Joseph Daniels has valuable international experience, capturing a bronze medal at the 2015 World U-18 Championships in Colombia.

Wayne Davis II set World Junior and meet records competing for the U.S. in 2009 when he clocked 13.08 in Trinidad and Tobago, the country he now represents.

Big pole vault possibilities

Since the women’s pole vault was first added to the Pan Am U-20 schedule in 1997, only once in the 10 editions where both genders have competed have the Americans swept the top two spots in the men’s and women’s competitions, in 2009 in Trinidad and Tobago.

The U.S. has strong potential to duplicate the achievement, with California state record holder Rachel Baxter of Anaheim Canyon and Mary Persons GA graduate Carson Dingler – veterans of 2015 World U-18 Championships in Colombia and 2016 World U-20 Championships in Poland – among the top women’s entries. Arizona state record holder Cole Riddle of Valley Vista and Redondo Union CA graduate Tate Curran boast the top qualifying marks in the men’s competition.

Despite their experience at global meets, Baxter and Dingler have never finished higher than fifth the past two years. Curran and Riddle are both making their international debuts.

Baxter, a Virginia Tech signee who cleared 14-4 (4.37m) on May 26, has the potential to challenge the 2013 meet record of 14-5.25 (4.40m) shared by Canada’s Alysha Newman and Venezuela’s Robeilys Peinado.

Another heavy medal haul

The U.S. has earned the most medals in 17 of the previous 18 Pan Am U-20 competitions – taking third overall in 2001 – and holds the records for golds and overall medals in a single meet.

The Americans established a new standard with 30 golds in 2015 in Canada, eclipsing their previous record of 27 in 1999.

The U.S. still has the overall record for most medals with 61 in 1999. The Americans nearly approached that total with 59 in 2011 and 58 in 2015.

Relays have played a big part of the U.S. success at the biennial meet. The Americans have won 15 of the previous 18 gold medals in both the men’s and women’s 4x100.

The U.S. has won 14 gold medals in the men’s 4x400 and 12 in the women’s 4x400. The Americans last swept all four relay golds in 2013 in Colombia.