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BOSTON MARATHON 2025

Daniel Welsh

Bib: 6801•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 17%
Gender (Male)
#0 / 16105
Top 27%
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: #4710
Start → 5K
20:33 | 6:37/mi
10K· 6.21 mi
41:19
Rank: #4917 (-207)
5K → 10K
20:46 | 6:41/mi
15K· 9.32 mi
1:02:01
Rank: #4827 (+90)
10K → 15K
20:42 | 6:40/mi
20K· 12.43 mi
1:23:01
Rank: #4822 (+5)
15K → 20K
21:00 | 6:46/mi
Half· 13.11 mi
1:27:35
Rank: #4835 (-13)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:44:09
Rank: #4841 (-6)
Half → 25K
16:34 | 6:50/mi
30K· 18.64 mi
2:06:09
Rank: #4893 (-52)
25K → 30K
22:00 | 7:05/mi
20M
2:16:00
Rank: #4917 (-24)
30K → 20M
9:51 | 7:15/mi
21M
2:23:38
Rank: #4945 (-28)
20M → 21M
7:38 | 7:38/mi
35K· 21.75 mi
2:28:50
Rank: #4915 (+30)
21M → 35K
5:12 | 6:57/mi
23M
2:37:55
Rank: #4926 (-11)
35K → 23M
9:05 | 7:15/mi
24M
2:45:03
Rank: #4951 (-25)
23M → 24M
7:08 | 7:08/mi
40K· 24.85 mi
2:51:15
Rank: #4953 (-2)
24M → 40K
6:12 | 7:15/mi
25.2M
2:53:48
Rank: #4890 (+63)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
3:00:40
Rank: #4838 (+52)
25.2M → Finish
6:52 | 6:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:35
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:33:05
Pace7:06 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:2820:336:3720:33
6:37
-
10K
6.21 mi10:47:1441:196:3920:46
6:41
+0:04
15K
9.32 mi11:07:561:02:016:3920:42
6:40
-0:01
20K
12.43 mi11:28:561:23:016:4121:00
6:46
+0:06
Half
13.11 mi11:33:301:27:356:414:34
6:42
-0:04
25K
15.53 mi11:50:041:44:096:4216:34
6:50
+0:08
30K
18.64 mi12:12:042:06:096:4622:00
7:05
+0:15
20M
20.00 mi12:21:552:16:006:489:51
7:15
+0:10
21M
21.00 mi12:29:332:23:386:507:38
7:38
+0:23
35K
21.75 mi12:34:452:28:506:515:12
6:57
-0:41
23M
23.00 mi12:43:502:37:556:529:05
7:15
+0:18
24M
24.00 mi12:50:582:45:036:537:08
7:08
-0:07
40K
24.85 mi12:57:102:51:156:536:12
7:15
+0:07
25.2M
25.20 mi12:59:432:53:486:542:33
7:24
+0:09
Finish
26.22 mi13:06:353:00:406:546:52
6:44
-0:40

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

6:54 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:29

94% of race

Time at Steady Pace

10:11

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:53 /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 mi10:26:2820:336:3720:33
6:37
#4710
10K
6.21 mi10:47:1441:196:3920:46
6:41
#4917
15K
9.32 mi11:07:561:02:016:3920:42
6:40
#4827
20K
12.43 mi11:28:561:23:016:4121:00
6:46
#4822
Half
13.11 mi11:33:301:27:356:414:34
6:42
#4835
25K
15.53 mi11:50:041:44:096:4216:34
6:50
#4841
30K
18.64 mi12:12:042:06:096:4622:00
7:05
#4893
20M
20.00 mi12:21:552:16:006:489:51
7:15
#4917
21M
21.00 mi12:29:332:23:386:507:38
7:38
#4945
35K
21.75 mi12:34:452:28:506:515:12
6:57
#4915
23M
23.00 mi12:43:502:37:556:529:05
7:15
#4926
24M
24.00 mi12:50:582:45:036:537:08
7:08
#4951
40K
24.85 mi12:57:102:51:156:536:12
7:15
#4953
25.2M
25.20 mi12:59:432:53:486:542:33
7:24
#4890
Finish
26.22 mi13:06:353:00:406:546:52
6:44
#4838
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4710441844184747(Top 17%)4431(Top 28%)4431(Top 79%)
10K6.21 mi3.10 mi4917-2074588-1704588-1705192(Top 18%)4821(Top 30%)4821(Top 85%)
15K9.32 mi3.11 mi4827+904509+794509+794747(Top 17%)4431(Top 28%)4431(Top 79%)
20K12.43 mi3.11 mi4822+54496+134496+134908(Top 17%)4536(Top 28%)4536(Top 80%)
Half13.11 mi0.68 mi4835-134506-104506-105172(Top 18%)4767(Top 30%)4767(Top 84%)
25K15.53 mi2.42 mi4841-64501+54501+55104(Top 18%)4679(Top 29%)4679(Top 83%)
30K18.64 mi3.11 mi4893-524523-224523-225193(Top 18%)4694(Top 29%)4694(Top 83%)
20M20.00 mi1.36 mi4917-244540-174540-175460(Top 19%)4810(Top 30%)4810(Top 85%)
21M21.00 mi1.00 mi4945-284556-164556-165264(Top 19%)4563(Top 28%)4563(Top 81%)
35K21.75 mi0.75 mi4915+304521+354521+355010(Top 18%)4377(Top 27%)4377(Top 78%)
23M23.00 mi1.25 mi4926-114520+14520+15182(Top 18%)4433(Top 28%)4433(Top 79%)
24M24.00 mi1.00 mi4951-254532-124532-125371(Top 19%)4505(Top 28%)4505(Top 80%)
40K24.85 mi0.85 mi4953-24524+84524+85314(Top 19%)4415(Top 27%)4415(Top 78%)
25.2M25.20 mi0.35 mi4890+634468+564468+562915(Top 10%)2594(Top 16%)2594(Top 46%)
Finish26.22 mi1.02 mi4838+524417+514417+514106(Top 14%)3509(Top 22%)3509(Top 62%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4747

Males

4431

M18-39

4431

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

5192

Males

4821

M18-39

4821

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4747

Males

4431

M18-39

4431

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4908

Males

4536

M18-39

4536

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

5172

Males

4767

M18-39

4767

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5104

Males

4679

M18-39

4679

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

5193

Males

4694

M18-39

4694

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5460

Males

4810

M18-39

4810

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5264

Males

4563

M18-39

4563

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

5010

Males

4377

M18-39

4377

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

5182

Males

4433

M18-39

4433

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

5371

Males

4505

M18-39

4505

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5314

Males

4415

M18-39

4415

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2915

Males

2594

M18-39

2594

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

4106

Males

3509

M18-39

3509

Passing Analysis

Category:
Athletes Passed
1173
Passed By
1301
Net Change
-128
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4710
5K → 10K92299-207#4710#4917
10K → 15K15666+90#4917#4827
15K → 20K131126+5#4827#4822
20K → Half2336-13#4822#4835
Half → 25K103109-6#4835#4841
25K → 30K145197-52#4841#4893
30K → 20M6387-24#4893#4917
20M → 21M6088-28#4917#4945
21M → 35K6939+30#4945#4915
35K → 23M7889-11#4915#4926
23M → 24M5277-25#4926#4951
24M → 40K5658-2#4951#4953
40K → 25.2M652+63#4953#4890
25.2M → Finish8028+52#4890#4838
TOTALS11731301-128
📊

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