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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Andrew Kulak

Bib: 418 •M •Age: 36

Blacksburg, VA

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Gender (Male)
#0 / 1153
Age Group (M35-39)
Official
#0 / 178
Calculated (M35-39)
#0 / 178
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
34:55
3.11 mi
Rank: #1620
Start → 5K
34:55 | 11:15/mi
10K
1:10:39
6.21 mi
Rank: #1632 (-12)
5K → 10K
35:44 | 11:31/mi
15K
1:45:37
9.32 mi
Rank: #1592 (+40)
10K → 15K
34:58 | 11:16/mi
20K
2:19:57
12.43 mi
Rank: #1557 (+35)
15K → 20K
34:20 | 11:04/mi
Half
2:28:01
13.10 mi
Rank: #1543 (+14)
20K → Half
8:04 | 12:02/mi
25K
2:55:19
15.53 mi
Rank: #1496 (+47)
Half → 25K
27:18 | 11:13/mi
30K
3:25:40
18.64 mi
Rank: #1443 (+53)
25K → 30K
30:21 | 9:47/mi
35K
4:04:03
21.75 mi
Rank: #1355 (+88)
30K → 35K
38:23 | 12:22/mi
25.2M
4:42:29
25.20 mi
Rank: #1302 (+53)
35K → 25.2M
38:26 | 11:09/mi
Finish
4:53:03
26.22 mi
Rank: #1290 (+12)
25.2M → Finish
10:34 | 10:23/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via Half
Distance13.10 mi
Time2:28:01
Pace11:19 /mi
2nd Half✓ Faster
Distance13.12 mi
Time2:25:03
Pace11:04 /mi
📊Negative Split: 2.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:17:4434:5511:1534:55
11:15
-
10K
6.21 mi08:53:281:10:3911:2335:44
11:31
+0:16
15K
9.32 mi09:28:261:45:3711:2034:58
11:16
-0:15
20K
12.43 mi10:02:462:19:5711:1634:20
11:04
-0:12
Half
13.10 mi10:10:502:28:0111:198:04
12:02
+0:58
25K
15.53 mi10:38:082:55:1911:1827:18
11:13
-0:49
30K
18.64 mi11:08:293:25:4011:0230:21
9:47
-1:26
35K
21.75 mi11:46:524:04:0311:1438:23
12:22
+2:35
25.2M
25.20 mi12:25:184:42:2911:1338:26
11:09
-1:13
Finish
26.22 mi12:35:524:53:0311:1210:34
10:23
-0:46

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

9:47 /mi

Average Pace

11:11 /mi

Slowest Pace

12:22 /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

40:55

14% of race

Time at Steady Pace

3:25:41

70% of race

Time at Slower Pace

46:27

16% of race

Average Pace: 11:11 /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 mi08:17:4434:5511:1534:55
11:15
#1620
10K
6.21 mi08:53:281:10:3911:2335:44
11:31
#1632
15K
9.32 mi09:28:261:45:3711:2034:58
11:16
#1592
20K
12.43 mi10:02:462:19:5711:1634:20
11:04
#1557
Half
13.10 mi10:10:502:28:0111:198:04
12:02
#1543
25K
15.53 mi10:38:082:55:1911:1827:18
11:13
#1496
30K
18.64 mi11:08:293:25:4011:0230:21
9:47
#1443
35K
21.75 mi11:46:524:04:0311:1438:23
12:22
#1355
25.2M
25.20 mi12:25:184:42:2911:1338:26
11:09
#1302
Finish
26.22 mi12:35:524:53:0311:1210:34
10:23
#1290
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
5K3.11 mi3.11 mi162010161591545(Top 79%)990(Top 86%)158(Top 89%)
10K6.21 mi3.10 mi1632-121026-10165-61642(Top 84%)1037(Top 90%)167(Top 94%)
15K9.32 mi3.11 mi1592+401016+10163+21545(Top 79%)990(Top 86%)158(Top 89%)
20K12.43 mi3.11 mi1557+35993+23159+41461(Top 75%)939(Top 81%)151(Top 85%)
Half13.10 mi0.67 mi1543+14985+8158+11500(Top 77%)955(Top 83%)150(Top 84%)
25K15.53 mi2.43 mi1496+47959+26154+41293(Top 66%)835(Top 72%)134(Top 75%)
30K18.64 mi3.11 mi1443+53919+40148+61171(Top 60%)759(Top 66%)122(Top 69%)
35K21.75 mi3.11 mi1355+88868+51139+91003(Top 51%)641(Top 56%)96(Top 54%)
25.2M25.20 mi3.45 mi1302+53831+37133+6948(Top 49%)585(Top 51%)88(Top 49%)
Finish26.22 mi1.02 mi1290+12823+8130+31088(Top 56%)674(Top 58%)102(Top 57%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×1
+26ft-31ft

Overall

1545

Males

990

M35-39

158

5K→10K

3.1 - 6.2 mi

Top 84%
×2
+38ft-17ft

Overall

1642

Males

1037

M35-39

167

10K→15K

6.2 - 9.3 mi

Top 79%
×2
+26ft-44ft

Overall

1545

Males

990

M35-39

158

15K→20K

9.3 - 12.4 mi

Top 75%
×1
+35ft-22ft

Overall

1461

Males

939

M35-39

151

20K→Half

12.4 - 13.1 mi

Top 77%
×1
+7ft-13ft

Overall

1500

Males

955

M35-39

150

Half→25K

13.1 - 15.5 mi

Top 66%
×2
+48ft-19ft

Overall

1293

Males

835

M35-39

134

25K→30K

15.5 - 18.6 mi

Top 60%
×2
+38ft-52ft

Overall

1171

Males

759

M35-39

122

30K→35K

18.6 - 21.8 mi

Top 51%
×2
+39ft-39ft

Overall

1003

Males

641

M35-39

96

35K→25.2M

21.8 - 25.2 mi

Top 49%
×3
+57ft-58ft

Overall

948

Males

585

M35-39

88

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×1
+17ft-12ft

Overall

1088

Males

674

M35-39

102

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
405
Passed By
75
Net Change
+330
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1620
5K → 10K3042-12#1620#1632
10K → 15K5414+40#1632#1592
15K → 20K383+35#1592#1557
20K → Half162+14#1557#1543
Half → 25K5710+47#1543#1496
25K → 30K541+53#1496#1443
30K → 35K891+88#1443#1355
35K → 25.2M541+53#1355#1302
25.2M → Finish131+12#1302#1290
TOTALS40575+330
📊

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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