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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Michael Dockter

Bib: 2204 •M •Age: 40

Medford, MA

Shamrock Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 1949
Gender (Male)
#0 / 1153
Masters (Masters Men)
#0 / 398
Age Group (M40-44)
Official
#0 / 120
Calculated (M40-44)
#0 / 120
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
33:28
3.11 mi
Rank: #1471
Start → 5K
33:28 | 10:47/mi
10K
1:05:55
6.21 mi
Rank: #1399 (+72)
5K → 10K
32:27 | 10:27/mi
15K
1:38:58
9.32 mi
Rank: #1391 (+8)
10K → 15K
33:03 | 10:39/mi
20K
2:12:55
12.43 mi
Rank: #1389 (+2)
15K → 20K
33:57 | 10:56/mi
Half
2:20:45
13.10 mi
Rank: #1382 (+7)
20K → Half
7:50 | 11:41/mi
25K
2:48:33
15.53 mi
Rank: #1372 (+10)
Half → 25K
27:48 | 11:25/mi
30K
3:18:34
18.64 mi
Rank: #1335 (+37)
25K → 30K
30:01 | 9:40/mi
35K
3:58:40
21.75 mi
Rank: #1281 (+54)
30K → 35K
40:06 | 12:55/mi
25.2M
4:39:03
25.20 mi
Rank: #1260 (+21)
35K → 25.2M
40:23 | 11:42/mi
Finish
4:50:34
26.22 mi
Rank: #1263 (-3)
25.2M → Finish
11:31 | 11:19/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:20:45
Pace10:45 /mi
2nd Half
Distance13.12 mi
Time2:29:50
Pace11:26 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:05:3733:2810:4733:28
10:47
-
10K
6.21 mi08:38:041:05:5510:3732:27
10:27
-0:20
15K
9.32 mi09:11:071:38:5810:3833:03
10:39
+0:12
20K
12.43 mi09:45:042:12:5510:4233:57
10:56
+0:17
Half
13.10 mi09:52:542:20:4510:457:50
11:41
+0:45
25K
15.53 mi10:20:422:48:3310:5227:48
11:25
-0:16
30K
18.64 mi10:50:433:18:3410:4030:01
9:40
-1:45
35K
21.75 mi11:30:493:58:4010:5940:06
12:55
+3:15
25.2M
25.20 mi12:11:124:39:0311:0540:23
11:42
-1:13
Finish
26.22 mi12:22:434:50:3411:0611:31
11:19
-0:23

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

9:40 /mi

Average Pace

11:05 /mi

Slowest Pace

12:55 /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

2:08:59

44% of race

Time at Steady Pace

2:01:29

42% of race

Time at Slower Pace

40:06

14% of race

Average Pace: 11:05 /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 mi08:05:3733:2810:4733:28
10:47
#1471
10K
6.21 mi08:38:041:05:5510:3732:27
10:27
#1399
15K
9.32 mi09:11:071:38:5810:3833:03
10:39
#1391
20K
12.43 mi09:45:042:12:5510:4233:57
10:56
#1389
Half
13.10 mi09:52:542:20:4510:457:50
11:41
#1382
25K
15.53 mi10:20:422:48:3310:5227:48
11:25
#1372
30K
18.64 mi10:50:433:18:3410:4030:01
9:40
#1335
35K
21.75 mi11:30:493:58:4010:5940:06
12:55
#1281
25.2M
25.20 mi12:11:124:39:0311:0540:23
11:42
#1260
Finish
26.22 mi12:22:434:50:3411:0611:31
11:19
#1263
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1471943981374(Top 70%)899(Top 78%)93(Top 78%)
10K6.21 mi3.10 mi1399+72909+3495+31331(Top 68%)879(Top 76%)94(Top 78%)
15K9.32 mi3.11 mi1391+8911-296-11374(Top 70%)899(Top 78%)93(Top 78%)
20K12.43 mi3.11 mi1389+2906+594+21424(Top 73%)916(Top 79%)96(Top 80%)
Half13.10 mi0.67 mi1382+7902+493+11416(Top 73%)909(Top 79%)97(Top 81%)
25K15.53 mi2.43 mi1372+10891+1192+11357(Top 70%)872(Top 76%)89(Top 74%)
30K18.64 mi3.11 mi1335+37865+2691+11146(Top 59%)742(Top 64%)80(Top 67%)
35K21.75 mi3.11 mi1281+54828+3790+11149(Top 59%)720(Top 62%)77(Top 64%)
25.2M25.20 mi3.45 mi1260+21806+2288+21096(Top 56%)666(Top 58%)70(Top 58%)
Finish26.22 mi1.02 mi1263-3804+286+21362(Top 70%)827(Top 72%)87(Top 73%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×1
+26ft-31ft

Overall

1374

Males

899

M40-44

93

5K→10K

3.1 - 6.2 mi

Top 68%
×2
+38ft-17ft

Overall

1331

Males

879

M40-44

94

10K→15K

6.2 - 9.3 mi

Top 70%
×2
+26ft-44ft

Overall

1374

Males

899

M40-44

93

15K→20K

9.3 - 12.4 mi

Top 73%
×1
+35ft-22ft

Overall

1424

Males

916

M40-44

96

20K→Half

12.4 - 13.1 mi

Top 73%
×1
+7ft-13ft

Overall

1416

Males

909

M40-44

97

Half→25K

13.1 - 15.5 mi

Top 70%
×2
+48ft-19ft

Overall

1357

Males

872

M40-44

89

25K→30K

15.5 - 18.6 mi

Top 59%
×2
+38ft-52ft

Overall

1146

Males

742

M40-44

80

30K→35K

18.6 - 21.8 mi

Top 59%
×2
+39ft-39ft

Overall

1149

Males

720

M40-44

77

35K→25.2M

21.8 - 25.2 mi

Top 56%
×3
+57ft-58ft

Overall

1096

Males

666

M40-44

70

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×1
+17ft-12ft

Overall

1362

Males

827

M40-44

87

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
297
Passed By
89
Net Change
+208
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1471
5K → 10K808+72#1471#1399
10K → 15K3022+8#1399#1391
15K → 20K1614+2#1391#1389
20K → Half114+7#1389#1382
Half → 25K2515+10#1382#1372
25K → 30K414+37#1372#1335
30K → 35K595+54#1335#1281
35K → 25.2M309+21#1281#1260
25.2M → Finish58-3#1260#1263
TOTALS29789+208
📊

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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