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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Dante Headley

Bib: 649 •M •Age: 27

Brooklyn, NY

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Top 49%
Gender (Male)
#0 / 1153
Age Group (M25-29)
#0 / 240
Race Day Weather
71°/61°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
28:34
3.11 mi
Rank: #884
Start → 5K
28:34 | 9:12/mi
10K
56:06
6.21 mi
Rank: #782 (+102)
5K → 10K
27:32 | 8:52/mi
15K
1:23:13
9.32 mi
Rank: #737 (+45)
10K → 15K
27:07 | 8:44/mi
20K
1:50:05
12.43 mi
Rank: #692 (+45)
15K → 20K
26:52 | 8:39/mi
Half
1:56:20
13.10 mi
Rank: #685 (+7)
20K → Half
6:15 | 9:19/mi
25K
2:17:57
15.53 mi
Rank: #654 (+31)
Half → 25K
21:37 | 8:53/mi
30K
2:45:36
18.64 mi
Rank: #712 (-58)
25K → 30K
27:39 | 8:54/mi
35K
3:26:42
21.75 mi
Rank: #804 (-92)
30K → 35K
41:06 | 13:14/mi
25.2M
4:14:30
25.20 mi
Rank: #941 (-137)
35K → 25.2M
47:48 | 13:51/mi
Finish
4:25:58
26.22 mi
Rank: #953 (-12)
25.2M → Finish
11:28 | 11:16/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time1:56:20
Pace8:53 /mi
2nd Half
Distance13.12 mi
Time2:29:39
Pace11:25 /mi
📊Positive Split: 28.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:02:4028:349:1228:34
9:12
-
10K
6.21 mi08:30:1256:069:0227:32
8:52
-0:20
15K
9.32 mi08:57:191:23:138:5627:07
8:44
-0:08
20K
12.43 mi09:24:111:50:058:5226:52
8:39
-0:05
Half
13.10 mi09:30:261:56:208:536:15
9:19
+0:40
25K
15.53 mi09:52:032:17:578:5321:37
8:53
-0:26
30K
18.64 mi10:19:422:45:368:5427:39
8:54
+0:01
35K
21.75 mi11:00:483:26:429:3141:06
13:14
+4:20
25.2M
25.20 mi11:48:364:14:3010:0647:48
13:51
+0:37
Finish
26.22 mi12:00:044:25:5810:1011:28
11:16
-2:35

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:39 /mi

Average Pace

10:09 /mi

Slowest Pace

13:51 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:45:36

62% of race

Time at Slower Pace

1:40:22

38% of race

Average Pace: 10:09 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi08:02:4028:349:1228:34
9:12
#884
10K
6.21 mi08:30:1256:069:0227:32
8:52
#782
15K
9.32 mi08:57:191:23:138:5627:07
8:44
#737
20K
12.43 mi09:24:111:50:058:5226:52
8:39
#692
Half
13.10 mi09:30:261:56:208:536:15
9:19
#685
25K
15.53 mi09:52:032:17:578:5321:37
8:53
#654
30K
18.64 mi10:19:422:45:368:5427:39
8:54
#712
35K
21.75 mi11:00:483:26:429:3141:06
13:14
#804
25.2M
25.20 mi11:48:364:14:3010:0647:48
13:51
#941
Finish
26.22 mi12:00:044:25:5810:1011:28
11:16
#953
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
5K3.11 mi3.11 mi884631139617(Top 32%)456(Top 40%)99(Top 41%)
10K6.21 mi3.10 mi782+102562+69117+22699(Top 36%)503(Top 44%)104(Top 43%)
15K9.32 mi3.11 mi737+45530+32109+8617(Top 32%)456(Top 40%)99(Top 41%)
20K12.43 mi3.11 mi692+45506+24106+3594(Top 30%)436(Top 38%)93(Top 39%)
Half13.10 mi0.67 mi685+7501+5104+2593(Top 30%)442(Top 38%)93(Top 39%)
25K15.53 mi2.43 mi654+31484+17103+1540(Top 28%)398(Top 35%)90(Top 38%)
30K18.64 mi3.11 mi712-58514-30109-6901(Top 46%)614(Top 53%)127(Top 53%)
35K21.75 mi3.11 mi804-92569-55123-141214(Top 62%)754(Top 65%)154(Top 64%)
25.2M25.20 mi3.45 mi941-137631-62135-121580(Top 81%)945(Top 82%)199(Top 83%)
Finish26.22 mi1.02 mi953-12633-2137-21349(Top 69%)818(Top 71%)177(Top 74%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×1
+26ft-31ft

Overall

617

Males

456

M25-29

99

5K→10K

3.1 - 6.2 mi

Top 36%
×2
+38ft-17ft

Overall

699

Males

503

M25-29

104

10K→15K

6.2 - 9.3 mi

Top 32%
×2
+26ft-44ft

Overall

617

Males

456

M25-29

99

15K→20K

9.3 - 12.4 mi

Top 30%
×1
+35ft-22ft

Overall

594

Males

436

M25-29

93

20K→Half

12.4 - 13.1 mi

Top 30%
×1
+7ft-13ft

Overall

593

Males

442

M25-29

93

Half→25K

13.1 - 15.5 mi

Top 28%
×2
+48ft-19ft

Overall

540

Males

398

M25-29

90

25K→30K

15.5 - 18.6 mi

Top 46%
×2
+38ft-52ft

Overall

901

Males

614

M25-29

127

30K→35K

18.6 - 21.8 mi

Top 62%
×2
+39ft-39ft

Overall

1214

Males

754

M25-29

154

35K→25.2M

21.8 - 25.2 mi

Top 81%
×3
+57ft-58ft

Overall

1580

Males

945

M25-29

199

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×1
+17ft-12ft

Overall

1349

Males

818

M25-29

177

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
261
Passed By
330
Net Change
-69
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#884
5K → 10K1075+102#884#782
10K → 15K450+45#782#737
15K → 20K472+45#737#692
20K → Half70+7#692#685
Half → 25K343+31#685#654
25K → 30K765-58#654#712
30K → 35K8100-92#712#804
35K → 25.2M5142-137#804#941
25.2M → Finish113-12#941#953
TOTALS261330-69
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

BQ

Boston Qualifying analysis available

Finisher Certificate

Download and share your official race completion certificate

🏆 Finisher Certificate
Download or share your official race finisher certificate
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Your certificate is generated on-demand and can be shared on social media or saved for your records

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
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