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SHAMROCK MARATHON 2025

Anthony Briggs

Bib: 2850•M•Age: 59

Land O Lakes, FL

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0:00
0:00
/ mi
Masters
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Overall
#0 / 1949
Gender (Male)
#0 / 1153
Masters (Masters Men)
#0 / 398
Age Group (M55-59)
#0 / 61
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
41:01
3.11 mi
Rank: #1895
Start → 5K
41:01 | 13:13/mi
10K
1:25:05
6.21 mi
Rank: #1915 (-20)
5K → 10K
44:04 | 14:12/mi
15K
2:08:15
9.32 mi
Rank: #1907 (+8)
10K → 15K
43:10 | 13:54/mi
20K
2:52:31
12.43 mi
Rank: #1907
15K → 20K
44:16 | 14:15/mi
Half
3:02:34
13.10 mi
Rank: #1901 (+6)
20K → Half
10:03 | 14:59/mi
25K
3:37:42
15.53 mi
Rank: #1902 (-1)
Half → 25K
35:08 | 14:26/mi
30K
4:22:20
18.64 mi
Rank: #1903 (-1)
25K → 30K
44:38 | 14:22/mi
35K
5:24:16
21.75 mi
Rank: #1908 (-5)
30K → 35K
1:01:56 | 19:57/mi
25.2M
6:18:35
25.20 mi
Rank: #1905 (+3)
35K → 25.2M
54:19 | 15:45/mi
Finish
6:33:05
26.22 mi
Rank: #1904 (+1)
25.2M → Finish
14:30 | 14:14/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time3:02:34
Pace13:57 /mi
2nd Half
Distance13.12 mi
Time3:30:31
Pace16:03 /mi
📊Positive Split: 15.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:27:2141:0113:1341:01
13:13
-
10K
6.21 mi09:11:251:25:0513:4244:04
14:12
+0:59
15K
9.32 mi09:54:352:08:1513:4643:10
13:54
-0:18
20K
12.43 mi10:38:512:52:3113:5344:16
14:15
+0:21
Half
13.10 mi10:48:543:02:3413:5710:03
14:59
+0:44
25K
15.53 mi11:24:023:37:4214:0135:08
14:26
-0:33
30K
18.64 mi12:08:404:22:2014:0544:38
14:22
-0:04
35K
21.75 mi13:10:365:24:1614:551:01:56
19:57
+5:35
25.2M
25.20 mi14:04:556:18:3515:0254:19
15:45
-4:12
Finish
26.22 mi14:19:256:33:0515:0114:30
14:14
-1:31

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

13:13 /mi

Average Pace

15:00 /mi

Slowest Pace

19:57 /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

41:01

10% of race

Time at Steady Pace

3:55:49

60% of race

Time at Slower Pace

1:56:15

30% of race

Average Pace: 15:00 /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 mi08:27:2141:0113:1341:01
13:13
#1895
10K
6.21 mi09:11:251:25:0513:4244:04
14:12
#1915
15K
9.32 mi09:54:352:08:1513:4643:10
13:54
#1907
20K
12.43 mi10:38:512:52:3113:5344:16
14:15
#1907
Half
13.10 mi10:48:543:02:3413:5710:03
14:59
#1901
25K
15.53 mi11:24:023:37:4214:0135:08
14:26
#1902
30K
18.64 mi12:08:404:22:2014:0544:38
14:22
#1903
35K
21.75 mi13:10:365:24:1614:551:01:56
19:57
#1908
25.2M
25.20 mi14:04:556:18:3515:0254:19
15:45
#1905
Finish
26.22 mi14:19:256:33:0515:0114:30
14:14
#1904
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi18951131601897(Top 97%)1134(Top 98%)59(Top 97%)
10K6.21 mi3.10 mi1915-201141-1061-11909(Top 98%)1137(Top 99%)61(Top 100%)
15K9.32 mi3.11 mi1907+81137+460+11897(Top 97%)1134(Top 98%)59(Top 97%)
20K12.43 mi3.11 mi19071138-1601892(Top 97%)1128(Top 98%)60(Top 98%)
Half13.10 mi0.67 mi1901+61132+6601863(Top 96%)1111(Top 96%)58(Top 95%)
25K15.53 mi2.43 mi1902-11135-3601796(Top 92%)1085(Top 94%)57(Top 93%)
30K18.64 mi3.11 mi1903-11135601895(Top 97%)1123(Top 97%)60(Top 98%)
35K21.75 mi3.11 mi1908-51137-2601909(Top 98%)1132(Top 98%)57(Top 93%)
25.2M25.20 mi3.45 mi1905+31134+3601808(Top 93%)1072(Top 93%)55(Top 90%)
Finish26.22 mi1.02 mi1904+11133+1601802(Top 92%)1073(Top 93%)56(Top 92%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×1
+26ft-31ft

Overall

1897

Males

1134

M55-59

59

5K→10K

3.1 - 6.2 mi

Top 98%
×2
+38ft-17ft

Overall

1909

Males

1137

M55-59

61

10K→15K

6.2 - 9.3 mi

Top 97%
×2
+26ft-44ft

Overall

1897

Males

1134

M55-59

59

15K→20K

9.3 - 12.4 mi

Top 97%
×1
+35ft-22ft

Overall

1892

Males

1128

M55-59

60

20K→Half

12.4 - 13.1 mi

Top 96%
×1
+7ft-13ft

Overall

1863

Males

1111

M55-59

58

Half→25K

13.1 - 15.5 mi

Top 92%
×2
+48ft-19ft

Overall

1796

Males

1085

M55-59

57

25K→30K

15.5 - 18.6 mi

Top 97%
×2
+38ft-52ft

Overall

1895

Males

1123

M55-59

60

30K→35K

18.6 - 21.8 mi

Top 98%
×2
+39ft-39ft

Overall

1909

Males

1132

M55-59

57

35K→25.2M

21.8 - 25.2 mi

Top 93%
×3
+57ft-58ft

Overall

1808

Males

1072

M55-59

55

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×1
+17ft-12ft

Overall

1802

Males

1073

M55-59

56

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
44
Passed By
53
Net Change
-9
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1895
5K → 10K424-20#1895#1915
10K → 15K80+8#1915#1907
15K → 20K330#1907#1907
20K → Half82+6#1907#1901
Half → 25K89-1#1901#1902
25K → 30K34-1#1902#1903
30K → 35K38-5#1903#1908
35K → 25.2M52+3#1908#1905
25.2M → Finish21+1#1905#1904
TOTALS4453-9
📊

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.

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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management