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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Jonathan Kraft

Bib: 2270 •M •Age: 27

Norfolk, VA

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
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
34:35
3.11 mi
Rank: #1577
Start → 5K
34:35 | 11:08/mi
10K
1:09:46
6.21 mi
Rank: #1581 (-4)
5K → 10K
35:11 | 11:20/mi
15K
1:44:58
9.32 mi
Rank: #1583 (-2)
10K → 15K
35:12 | 11:20/mi
20K
2:21:05
12.43 mi
Rank: #1588 (-5)
15K → 20K
36:07 | 11:38/mi
Half
2:29:05
13.10 mi
Rank: #1574 (+14)
20K → Half
8:00 | 11:56/mi
25K
2:57:30
15.53 mi
Rank: #1546 (+28)
Half → 25K
28:25 | 11:40/mi
30K
3:30:22
18.64 mi
Rank: #1527 (+19)
25K → 30K
32:52 | 10:35/mi
35K
4:16:59
21.75 mi
Rank: #1520 (+7)
30K → 35K
46:37 | 15:01/mi
25.2M
5:04:47
25.20 mi
Rank: #1535 (-15)
35K → 25.2M
47:48 | 13:51/mi
Finish
5:14:51
26.22 mi
Rank: #1519 (+16)
25.2M → Finish
10:04 | 9:53/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:29:05
Pace11:23 /mi
2nd Half
Distance13.12 mi
Time2:45:47
Pace12:39 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:18:5234:3511:0834:35
11:08
-
10K
6.21 mi08:54:031:09:4611:1435:11
11:20
+0:12
15K
9.32 mi09:29:151:44:5811:1635:12
11:20
0:00
20K
12.43 mi10:05:222:21:0511:2236:07
11:38
+0:18
Half
13.10 mi10:13:222:29:0511:238:00
11:56
+0:18
25K
15.53 mi10:41:472:57:3011:2628:25
11:40
-0:16
30K
18.64 mi11:14:393:30:2211:1832:52
10:35
-1:05
35K
21.75 mi12:01:164:16:5911:4946:37
15:01
+4:26
25.2M
25.20 mi12:49:045:04:4712:0647:48
13:51
-1:10
Finish
26.22 mi12:59:085:14:5112:0210:04
9:53
-3:58

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

9:53 /mi

Average Pace

12:01 /mi

Slowest Pace

15:01 /mi

Loading chart...
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

42:56

14% of race

Time at Steady Pace

2:57:30

56% of race

Time at Slower Pace

1:34:25

30% of race

Average Pace: 12:00 /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 mi08:18:5234:3511:0834:35
11:08
#1577
10K
6.21 mi08:54:031:09:4611:1435:11
11:20
#1581
15K
9.32 mi09:29:151:44:5811:1635:12
11:20
#1583
20K
12.43 mi10:05:222:21:0511:2236:07
11:38
#1588
Half
13.10 mi10:13:222:29:0511:238:00
11:56
#1574
25K
15.53 mi10:41:472:57:3011:2628:25
11:40
#1546
30K
18.64 mi11:14:393:30:2211:1832:52
10:35
#1527
35K
21.75 mi12:01:164:16:5911:4946:37
15:01
#1520
25.2M
25.20 mi12:49:045:04:4712:0647:48
13:51
#1535
Finish
26.22 mi12:59:085:14:5112:0210:04
9:53
#1519
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 mi15779942041566(Top 80%)999(Top 87%)207(Top 86%)
10K6.21 mi3.10 mi1581-41000-6209-51583(Top 81%)1004(Top 87%)214(Top 89%)
15K9.32 mi3.11 mi1583-21009-9210-11566(Top 80%)999(Top 87%)207(Top 86%)
20K12.43 mi3.11 mi1588-51007+2209+11595(Top 82%)1007(Top 87%)214(Top 89%)
Half13.10 mi0.67 mi1574+141000+72091472(Top 76%)938(Top 81%)194(Top 81%)
25K15.53 mi2.43 mi1546+28987+13206+31416(Top 73%)900(Top 78%)185(Top 77%)
30K18.64 mi3.11 mi1527+19968+19204+21404(Top 72%)873(Top 76%)178(Top 74%)
35K21.75 mi3.11 mi1520+7956+12202+21498(Top 77%)911(Top 79%)194(Top 81%)
25.2M25.20 mi3.45 mi1535-15958-22021581(Top 81%)946(Top 82%)200(Top 83%)
Finish26.22 mi1.02 mi1519+16949+9198+4914(Top 47%)573(Top 50%)122(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×1
+26ft-31ft

Overall

1566

Males

999

M25-29

207

5K→10K

3.1 - 6.2 mi

Top 81%
×2
+38ft-17ft

Overall

1583

Males

1004

M25-29

214

10K→15K

6.2 - 9.3 mi

Top 80%
×2
+26ft-44ft

Overall

1566

Males

999

M25-29

207

15K→20K

9.3 - 12.4 mi

Top 82%
×1
+35ft-22ft

Overall

1595

Males

1007

M25-29

214

20K→Half

12.4 - 13.1 mi

Top 76%
×1
+7ft-13ft

Overall

1472

Males

938

M25-29

194

Half→25K

13.1 - 15.5 mi

Top 73%
×2
+48ft-19ft

Overall

1416

Males

900

M25-29

185

25K→30K

15.5 - 18.6 mi

Top 72%
×2
+38ft-52ft

Overall

1404

Males

873

M25-29

178

30K→35K

18.6 - 21.8 mi

Top 77%
×2
+39ft-39ft

Overall

1498

Males

911

M25-29

194

35K→25.2M

21.8 - 25.2 mi

Top 81%
×3
+57ft-58ft

Overall

1581

Males

946

M25-29

200

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×1
+17ft-12ft

Overall

914

Males

573

M25-29

122

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
220
Passed By
162
Net Change
+58
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1577
5K → 10K3539-4#1577#1581
10K → 15K2426-2#1581#1583
15K → 20K1621-5#1583#1588
20K → Half162+14#1588#1574
Half → 25K4214+28#1574#1546
25K → 30K3415+19#1546#1527
30K → 35K2720+7#1527#1520
35K → 25.2M924-15#1520#1535
25.2M → Finish171+16#1535#1519
TOTALS220162+58
📊

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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