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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Donald McKinnon

Bib: 747 •M •Age: 50

Stafford, VA

Shamrock Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 1949
Top 22%
Gender (Male)
#0 / 1153
Top 27%
Masters (Masters Men)
#0 / 398
Top 26%
Age Group (M50-54)
#0 / 76
Top 21%
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
26:28
3.11 mi
Rank: #536
Start → 5K
26:28 | 8:32/mi
10K
53:25
6.21 mi
Rank: #555 (-19)
5K → 10K
26:57 | 8:41/mi
15K
1:19:47
9.32 mi
Rank: #540 (+15)
10K → 15K
26:22 | 8:30/mi
20K
1:46:13
12.43 mi
Rank: #529 (+11)
15K → 20K
26:26 | 8:31/mi
Half
1:52:14
13.10 mi
Rank: #518 (+11)
20K → Half
6:01 | 8:58/mi
25K
2:13:22
15.53 mi
Rank: #503 (+15)
Half → 25K
21:08 | 8:41/mi
30K
2:37:04
18.64 mi
Rank: #487 (+16)
25K → 30K
23:42 | 7:38/mi
35K
3:07:27
21.75 mi
Rank: #451 (+36)
30K → 35K
30:23 | 9:47/mi
25.2M
3:37:49
25.20 mi
Rank: #418 (+33)
35K → 25.2M
30:22 | 8:48/mi
Finish
3:46:40
26.22 mi
Rank: #423 (-5)
25.2M → Finish
8:51 | 8:42/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time1:52:14
Pace8:35 /mi
2nd Half
Distance13.12 mi
Time1:54:26
Pace8:44 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:00:3826:288:3226:28
8:32
-
10K
6.21 mi08:27:3553:258:3626:57
8:41
+0:09
15K
9.32 mi08:53:571:19:478:3426:22
8:30
-0:11
20K
12.43 mi09:20:231:46:138:3326:26
8:31
+0:01
Half
13.10 mi09:26:241:52:148:356:01
8:58
+0:27
25K
15.53 mi09:47:322:13:228:3621:08
8:41
-0:17
30K
18.64 mi10:11:142:37:048:2623:42
7:38
-1:03
35K
21.75 mi10:41:373:07:278:3830:23
9:47
+2:09
25.2M
25.20 mi11:11:593:37:498:3930:22
8:48
-0:59
Finish
26.22 mi11:20:503:46:408:408:51
8:42
-0:06

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. Green = fastest, yellow = moderate, red = slowest segments.

Fastest Pace

7:38 /mi

Average Pace

8:39 /mi

Slowest Pace

9:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Color indicates pace quality: green = fast pace, yellow = moderate, red = slow pace.

Time at Fast Pace

23:42

10% of race

Time at Moderate Pace

2:46:34

73% of race

Time at Slow Pace

36:24

16% of race

Average Pace: 8:39 /mi

Loading chart...
Fast pace (< avg)
Moderate pace (≈ avg)
Slow pace (> avg)

🎨Heatmap

Pace Heatmap

Visual intensity map of your pacing throughout the race. Green = fastest, yellow = moderate, red = slowest.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Fast
Moderate
Slow

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 mi08:00:3826:288:3226:28
8:32
#536
10K
6.21 mi08:27:3553:258:3626:57
8:41
#555
15K
9.32 mi08:53:571:19:478:3426:22
8:30
#540
20K
12.43 mi09:20:231:46:138:3326:26
8:31
#529
Half
13.10 mi09:26:241:52:148:356:01
8:58
#518
25K
15.53 mi09:47:322:13:228:3621:08
8:41
#503
30K
18.64 mi10:11:142:37:048:2623:42
7:38
#487
35K
21.75 mi10:41:373:07:278:3830:23
9:47
#451
25.2M
25.20 mi11:11:593:37:498:3930:22
8:48
#418
Finish
26.22 mi11:20:503:46:408:408:51
8:42
#423
Fast pace
Moderate pace
Slow pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi53640419501(Top 26%)379(Top 33%)15(Top 20%)
10K6.21 mi3.10 mi555-19412-819612(Top 31%)449(Top 39%)22(Top 29%)
15K9.32 mi3.11 mi540+15405+718+1501(Top 26%)379(Top 33%)15(Top 20%)
20K12.43 mi3.11 mi529+11395+1018518(Top 27%)385(Top 33%)16(Top 21%)
Half13.10 mi0.67 mi518+11387+818468(Top 24%)355(Top 31%)15(Top 20%)
25K15.53 mi2.43 mi503+15379+816+2461(Top 24%)348(Top 30%)17(Top 22%)
30K18.64 mi3.11 mi487+16365+1416421(Top 22%)315(Top 27%)15(Top 20%)
35K21.75 mi3.11 mi451+36339+2616377(Top 19%)268(Top 23%)10(Top 13%)
25.2M25.20 mi3.45 mi418+33311+2815+1320(Top 16%)225(Top 20%)10(Top 13%)
Finish26.22 mi1.02 mi423-5313-216-1489(Top 25%)327(Top 28%)17(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×1
+26ft-31ft

Overall

501

Males

379

M50-54

15

5K→10K

3.1 - 6.2 mi

Top 31%
×2
+38ft-17ft

Overall

612

Males

449

M50-54

22

10K→15K

6.2 - 9.3 mi

Top 26%
×2
+26ft-44ft

Overall

501

Males

379

M50-54

15

15K→20K

9.3 - 12.4 mi

Top 27%
×1
+35ft-22ft

Overall

518

Males

385

M50-54

16

20K→Half

12.4 - 13.1 mi

Top 24%
×1
+7ft-13ft

Overall

468

Males

355

M50-54

15

Half→25K

13.1 - 15.5 mi

Top 24%
×2
+48ft-19ft

Overall

461

Males

348

M50-54

17

25K→30K

15.5 - 18.6 mi

Top 22%
×2
+38ft-52ft

Overall

421

Males

315

M50-54

15

30K→35K

18.6 - 21.8 mi

Top 19%
×2
+39ft-39ft

Overall

377

Males

268

M50-54

10

35K→25.2M

21.8 - 25.2 mi

Top 16%
×3
+57ft-58ft

Overall

320

Males

225

M50-54

10

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×1
+17ft-12ft

Overall

489

Males

327

M50-54

17

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
176
Passed By
63
Net Change
+113
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#536
5K → 10K827-19#536#555
10K → 15K205+15#555#540
15K → 20K187+11#540#529
20K → Half110+11#529#518
Half → 25K205+15#518#503
25K → 30K193+16#503#487
30K → 35K393+36#487#451
35K → 25.2M385+33#451#418
25.2M → Finish38-5#418#423
TOTALS17663+113
📊

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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