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BOSTON MARATHON 2025

David Siegel

Bib: 28918•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:47
Rank: #23433
Start → 5K
9:16/mi
28:47 split
10K· 6.21 mi
58:37
Rank: #23986 (-553)
5K → 10K
9:36/mi
29:50 split
15K· 9.32 mi
1:27:31
Rank: #23722 (+264)
10K → 15K
9:18/mi
28:54 split
20K· 12.43 mi
1:57:23
Rank: #23611 (+111)
15K → 20K
9:37/mi
29:52 split
Half· 13.11 mi
2:04:09
Rank: #23659 (-48)
20K → Half
9:55/mi
6:46 split
25K· 15.53 mi
2:29:59
Rank: #23862 (-203)
Half → 25K
10:39/mi
25:50 split
30K· 18.64 mi
3:03:05
Rank: #23730 (+132)
25K → 30K
10:39/mi
33:06 split
20M
3:17:21
Rank: #23629 (+101)
30K → 20M
10:30/mi
14:16 split
21M
3:29:30
Rank: #23660 (-31)
20M → 21M
12:09/mi
12:09 split
35K· 21.75 mi
3:37:40
Rank: #23689 (-29)
21M → 35K
10:55/mi
8:10 split
23M
3:51:14
Rank: #23621 (+68)
35K → 23M
10:50/mi
13:34 split
24M
4:02:01
Rank: #23620 (+1)
23M → 24M
10:47/mi
10:47 split
40K· 24.85 mi
4:11:25
Rank: #23618 (+2)
24M → 40K
11:00/mi
9:24 split
25.2M
4:15:17
Rank: #23581 (+37)
40K → 25.2M
11:13/mi
3:52 split
Finish· 26.22 mi
4:25:17
Rank: #23521 (+60)
25.2M → Finish
9:49/mi
10:00 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:09
Pace9:28 /mi
2nd Half
Distance13.11 mi
Time2:21:08
Pace10:46 /mi
📊Positive Split: 13.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:5428:479:1628:47
9:16
-
10K
6.21 mi12:17:4458:379:2629:50
9:36
+0:20
15K
9.32 mi12:46:381:27:319:2328:54
9:18
-0:18
20K
12.43 mi13:16:301:57:239:2729:52
9:37
+0:19
Half
13.11 mi13:23:162:04:099:286:46
9:55
+0:18
25K
15.53 mi13:49:062:29:599:3925:50
10:39
+0:44
30K
18.64 mi14:22:123:03:059:4933:06
10:39
0:00
20M
20.00 mi14:36:283:17:219:5214:16
10:30
-0:09
21M
21.00 mi14:48:373:29:309:5912:09
12:09
+1:39
35K
21.75 mi14:56:473:37:4010:018:10
10:55
-1:14
23M
23.00 mi15:10:213:51:1410:0313:34
10:50
-0:05
24M
24.00 mi15:21:084:02:0110:0510:47
10:47
-0:03
40K
24.85 mi15:30:324:11:2510:079:24
11:00
+0:13
25.2M
25.20 mi15:34:244:15:1710:083:52
11:13
+0:13
Finish
26.22 mi15:44:244:25:1710:0810:00
9:49
-1:24

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

9:16 /mi

Average Pace

10:08 /mi

Slowest Pace

12:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:09

51% of race

Time at Steady Pace

1:55:07

43% of race

Time at Slower Pace

16:01

6% of race

Average Pace: 10:07 /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 mi11:47:5428:479:1628:47
9:16
#23433
10K
6.21 mi12:17:4458:379:2629:50
9:36
#23986
15K
9.32 mi12:46:381:27:319:2328:54
9:18
#23722
20K
12.43 mi13:16:301:57:239:2729:52
9:37
#23611
Half
13.11 mi13:23:162:04:099:286:46
9:55
#23659
25K
15.53 mi13:49:062:29:599:3925:50
10:39
#23862
30K
18.64 mi14:22:123:03:059:4933:06
10:39
#23730
20M
20.00 mi14:36:283:17:219:5214:16
10:30
#23629
21M
21.00 mi14:48:373:29:309:5912:09
12:09
#23660
35K
21.75 mi14:56:473:37:4010:018:10
10:55
#23689
23M
23.00 mi15:10:213:51:1410:0313:34
10:50
#23621
24M
24.00 mi15:21:084:02:0110:0510:47
10:47
#23620
40K
24.85 mi15:30:324:11:2510:079:24
11:00
#23618
25.2M
25.20 mi15:34:244:15:1710:083:52
11:13
#23581
Finish
26.22 mi15:44:244:25:1710:0810:00
9:49
#23521
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi23433139671396723214(Top 82%)13938(Top 87%)13938(Top 584%)
10K6.21 mi3.10 mi23986-55314245-27814245-27824362(Top 86%)14407(Top 89%)14407(Top 604%)
15K9.32 mi3.11 mi23722+26414130+11514130+11523214(Top 82%)13938(Top 87%)13938(Top 584%)
20K12.43 mi3.11 mi23611+11114080+5014080+5023248(Top 82%)13913(Top 86%)13913(Top 583%)
Half13.11 mi0.68 mi23659-4814099-1914099-1924641(Top 87%)14493(Top 90%)14493(Top 607%)
25K15.53 mi2.42 mi23862-20314177-7814177-7824635(Top 87%)14477(Top 90%)14477(Top 607%)
30K18.64 mi3.11 mi23730+13214080+9714080+9723284(Top 82%)13740(Top 85%)13740(Top 576%)
20M20.00 mi1.36 mi23629+10114009+7114009+7122407(Top 79%)13237(Top 82%)13237(Top 555%)
21M21.00 mi1.00 mi23660-3114011-214011-223843(Top 84%)13840(Top 86%)13840(Top 580%)
35K21.75 mi0.75 mi23689-2914020-914020-924022(Top 85%)13888(Top 86%)13888(Top 582%)
23M23.00 mi1.25 mi23621+6813969+5113969+5122829(Top 80%)13263(Top 82%)13263(Top 556%)
24M24.00 mi1.00 mi23620+113949+2013949+2023528(Top 83%)13581(Top 84%)13581(Top 569%)
40K24.85 mi0.85 mi23618+213929+2013929+2023133(Top 81%)13305(Top 83%)13305(Top 558%)
25.2M25.20 mi0.35 mi23581+3713903+2613903+2621263(Top 75%)12425(Top 77%)12425(Top 521%)
Finish26.22 mi1.02 mi23521+6013862+4113862+4122321(Top 79%)12933(Top 80%)12933(Top 542%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

23214

Males

13938

M45-49

13938

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

24362

Males

14407

M45-49

14407

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

23214

Males

13938

M45-49

13938

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

23248

Males

13913

M45-49

13913

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

24641

Males

14493

M45-49

14493

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

24635

Males

14477

M45-49

14477

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

23284

Males

13740

M45-49

13740

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

22407

Males

13237

M45-49

13237

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

23843

Males

13840

M45-49

13840

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

24022

Males

13888

M45-49

13888

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

22829

Males

13263

M45-49

13263

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

23528

Males

13581

M45-49

13581

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

23133

Males

13305

M45-49

13305

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21263

Males

12425

M45-49

12425

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

22321

Males

12933

M45-49

12933

Passing Analysis

Category:
Athletes Passed
1393
Passed By
1481
Net Change
-88
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23433
5K → 10K77630-553#23433#23986
10K → 15K30844+264#23986#23722
15K → 20K19584+111#23722#23611
20K → Half654-48#23611#23659
Half → 25K63266-203#23659#23862
25K → 30K22088+132#23862#23730
30K → 20M12322+101#23730#23629
20M → 21M6293-31#23629#23660
21M → 35K3463-29#23660#23689
35K → 23M9325+68#23689#23621
23M → 24M5049+1#23621#23620
24M → 40K4341+2#23620#23618
40K → 25.2M436+37#23618#23581
25.2M → Finish7616+60#23581#23521
TOTALS13931481-88
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing