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BOSTON MARATHON 2025

Mark Cairns

Bib: 6926•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 16%
Gender (Male)
#0 / 16105
Top 26%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:33
Rank: #4723
Start → 5K
20:33 | 6:37/mi
10K· 6.21 mi
41:08
Rank: #4654 (+69)
5K → 10K
20:35 | 6:38/mi
15K· 9.32 mi
1:01:58
Rank: #4786 (-132)
10K → 15K
20:50 | 6:42/mi
20K· 12.43 mi
1:22:43
Rank: #4600 (+186)
15K → 20K
20:45 | 6:41/mi
Half· 13.11 mi
1:27:16
Rank: #4618 (-18)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:43:40
Rank: #4571 (+47)
Half → 25K
16:24 | 6:46/mi
30K· 18.64 mi
2:05:16
Rank: #4488 (+83)
25K → 30K
21:36 | 6:57/mi
20M
2:14:50
Rank: #4442 (+46)
30K → 20M
9:34 | 7:02/mi
21M
2:22:25
Rank: #4461 (-19)
20M → 21M
7:35 | 7:35/mi
35K· 21.75 mi
2:27:34
Rank: #4436 (+25)
21M → 35K
5:09 | 6:53/mi
23M
2:36:35
Rank: #4444 (-8)
35K → 23M
9:01 | 7:12/mi
24M
2:43:39
Rank: #4465 (-21)
23M → 24M
7:04 | 7:04/mi
40K· 24.85 mi
2:49:48
Rank: #4476 (-11)
24M → 40K
6:09 | 7:12/mi
25.2M
2:52:30
Rank: #4484 (-8)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
2:59:39
Rank: #4576 (-92)
25.2M → Finish
7:09 | 7:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:16
Pace6:39 /mi
2nd Half
Distance13.11 mi
Time1:32:23
Pace7:03 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:1520:336:3720:33
6:37
-
10K
6.21 mi10:47:5041:086:3720:35
6:38
+0:01
15K
9.32 mi11:08:401:01:586:3920:50
6:42
+0:04
20K
12.43 mi11:29:251:22:436:3920:45
6:41
-0:01
Half
13.11 mi11:33:581:27:166:394:33
6:40
-0:01
25K
15.53 mi11:50:221:43:406:4016:24
6:46
+0:06
30K
18.64 mi12:11:582:05:166:4321:36
6:57
+0:11
20M
20.00 mi12:21:322:14:506:449:34
7:02
+0:05
21M
21.00 mi12:29:072:22:256:477:35
7:35
+0:33
35K
21.75 mi12:34:162:27:346:475:09
6:53
-0:42
23M
23.00 mi12:43:172:36:356:489:01
7:12
+0:19
24M
24.00 mi12:50:212:43:396:497:04
7:04
-0:08
40K
24.85 mi12:56:302:49:486:506:09
7:12
+0:08
25.2M
25.20 mi12:59:122:52:306:512:42
7:50
+0:38
Finish
26.22 mi13:06:212:59:396:517:09
7:01
-0:49

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

6:37 /mi

Average Pace

6:51 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:22

94% of race

Time at Steady Pace

7:35

4% of race

Time at Slower Pace

2:42

2% of race

Average Pace: 6:51 /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 mi10:27:1520:336:3720:33
6:37
#4723
10K
6.21 mi10:47:5041:086:3720:35
6:38
#4654
15K
9.32 mi11:08:401:01:586:3920:50
6:42
#4786
20K
12.43 mi11:29:251:22:436:3920:45
6:41
#4600
Half
13.11 mi11:33:581:27:166:394:33
6:40
#4618
25K
15.53 mi11:50:221:43:406:4016:24
6:46
#4571
30K
18.64 mi12:11:582:05:166:4321:36
6:57
#4488
20M
20.00 mi12:21:322:14:506:449:34
7:02
#4442
21M
21.00 mi12:29:072:22:256:477:35
7:35
#4461
35K
21.75 mi12:34:162:27:346:475:09
6:53
#4436
23M
23.00 mi12:43:172:36:356:489:01
7:12
#4444
24M
24.00 mi12:50:212:43:396:497:04
7:04
#4465
40K
24.85 mi12:56:302:49:486:506:09
7:12
#4476
25.2M
25.20 mi12:59:122:52:306:512:42
7:50
#4484
Finish
26.22 mi13:06:212:59:396:517:09
7:01
#4576
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4723443144315135(Top 18%)4760(Top 30%)4760(Top 84%)
10K6.21 mi3.10 mi4654+694365+664365+664667(Top 16%)4369(Top 27%)4369(Top 77%)
15K9.32 mi3.11 mi4786-1324476-1114476-1115135(Top 18%)4760(Top 30%)4760(Top 84%)
20K12.43 mi3.11 mi4600+1864303+1734303+1734258(Top 15%)3986(Top 25%)3986(Top 71%)
Half13.11 mi0.68 mi4618-184318-154318-155038(Top 18%)4667(Top 29%)4667(Top 83%)
25K15.53 mi2.42 mi4571+474272+464272+464607(Top 16%)4252(Top 26%)4252(Top 75%)
30K18.64 mi3.11 mi4488+834191+814191+814405(Top 16%)4033(Top 25%)4033(Top 71%)
20M20.00 mi1.36 mi4442+464138+534138+534357(Top 15%)3972(Top 25%)3972(Top 70%)
21M21.00 mi1.00 mi4461-194140-24140-25042(Top 18%)4409(Top 27%)4409(Top 78%)
35K21.75 mi0.75 mi4436+254115+254115+254639(Top 16%)4117(Top 26%)4117(Top 73%)
23M23.00 mi1.25 mi4444-84112+34112+34886(Top 17%)4237(Top 26%)4237(Top 75%)
24M24.00 mi1.00 mi4465-214119-74119-75024(Top 18%)4281(Top 27%)4281(Top 76%)
40K24.85 mi0.85 mi4476-114120-14120-15011(Top 18%)4221(Top 26%)4221(Top 75%)
25.2M25.20 mi0.35 mi4484-8412041205033(Top 18%)4150(Top 26%)4150(Top 74%)
Finish26.22 mi1.02 mi4576-924195-754195-755827(Top 21%)4624(Top 29%)4624(Top 82%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5135

Males

4760

M18-39

4760

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4667

Males

4369

M18-39

4369

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5135

Males

4760

M18-39

4760

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4258

Males

3986

M18-39

3986

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

5038

Males

4667

M18-39

4667

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4607

Males

4252

M18-39

4252

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4405

Males

4033

M18-39

4033

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4357

Males

3972

M18-39

3972

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

5042

Males

4409

M18-39

4409

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4639

Males

4117

M18-39

4117

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4886

Males

4237

M18-39

4237

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

5024

Males

4281

M18-39

4281

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5011

Males

4221

M18-39

4221

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5033

Males

4150

M18-39

4150

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5827

Males

4624

M18-39

4624

Passing Analysis

Category:
Athletes Passed
1234
Passed By
1087
Net Change
+147
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4723
5K → 10K210141+69#4723#4654
10K → 15K71203-132#4654#4786
15K → 20K22034+186#4786#4600
20K → Half1129-18#4600#4618
Half → 25K13083+47#4618#4571
25K → 30K17693+83#4571#4488
30K → 20M9650+46#4488#4442
20M → 21M6382-19#4442#4461
21M → 35K5429+25#4461#4436
35K → 23M6573-8#4436#4444
23M → 24M4566-21#4444#4465
24M → 40K4758-11#4465#4476
40K → 25.2M2129-8#4476#4484
25.2M → Finish25117-92#4484#4576
TOTALS12341087+147
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing