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SHAMROCK MARATHON 2025

Donald McKinnon

Bib: 747•M•Age: 50

Stafford, VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 1949
Top 22%
Gender (Male)
#0 / 1153
Top 27%
Masters (Masters Men)
#0 / 398
Top 26%
Division (M50-54)
#0 / 76
Top 21%
Race Day Weather
71°/61°F
overcast clouds

⏱️ Race Timeline

Course Elevation
-8–55 ft
≈
×5story building
•▲ 331 ft climb · ▼ 310 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:32/mi
26:28
↑ 26↓ 31
10K· 6.21 mi
8:41/mi
53:25
↑ 38↓ 170.1%
15K· 9.32 mi
8:30/mi
1:19:47
↑ 26↓ 440.1%
20K· 12.43 mi
8:31/mi
1:46:13
↑ 35↓ 22
Half· 13.10 mi
8:58/mi
1:52:14
↓ 130.2%
25K· 15.53 mi
8:41/mi
2:13:22
↑ 48↓ 190.2%
30K· 18.64 mi
7:38/mi
2:37:04
↑ 38↓ 52
35K· 21.75 mi
9:47/mi
3:07:27
↑ 39↓ 39
25.2M
8:48/mi
3:37:49
↑ 57↓ 58
Finish· 26.22 mi
8:42/mi
3:46:40
↑ 17↓ 12

The Course

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Half Splits

1st Half· via HalfFaster
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

Checkpoints & Pacing

📈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

7:38 /mi

Average Pace

8:39 /mi

Slowest Pace

9:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

23:42

10% of race

Time at Steady Pace

2:46:34

73% of race

Time at Slower Pace

36:24

16% of race

Average Pace: 8:39 /mi

Loading chart...
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

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
Faster pace
Steady pace
Slower pace

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%
×1story
+26ft-31ft

Overall

501

Males

379

M50-54

15

5K→10K

3.1 - 6.2 mi

Top 31%
×2story building
+38ft-17ft

Overall

612

Males

449

M50-54

22

10K→15K

6.2 - 9.3 mi

Top 26%
×2story building
+26ft-44ft

Overall

501

Males

379

M50-54

15

15K→20K

9.3 - 12.4 mi

Top 27%
×1story
+35ft-22ft

Overall

518

Males

385

M50-54

16

20K→Half

12.4 - 13.1 mi

Top 24%
×1human
+7ft-13ft

Overall

468

Males

355

M50-54

15

Half→25K

13.1 - 15.5 mi

Top 24%
×2story building
+48ft-19ft

Overall

461

Males

348

M50-54

17

25K→30K

15.5 - 18.6 mi

Top 22%
×2story building
+38ft-52ft

Overall

421

Males

315

M50-54

15

30K→35K

18.6 - 21.8 mi

Top 19%
×2stacked humans
+39ft-39ft

Overall

377

Males

268

M50-54

10

35K→25.2M

21.8 - 25.2 mi

Top 16%
×3story building
+57ft-58ft

Overall

320

Males

225

M50-54

10

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×1human
+17ft-12ft

Overall

489

Males

327

M50-54

17

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 Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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BQ

Boston Qualifying analysis available

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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management