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BOSTON MARATHON 2025

Alexander Erlewein

Bib: 30535•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:55
Rank: #26242
Start → 5K
31:55 | 10:16/mi
10K· 6.21 mi
1:04:01
Rank: #26092 (+150)
5K → 10K
32:06 | 10:20/mi
15K· 9.32 mi
1:35:52
Rank: #25888 (+204)
10K → 15K
31:51 | 10:15/mi
20K· 12.43 mi
2:07:50
Rank: #25586 (+302)
15K → 20K
31:58 | 10:17/mi
Half· 13.11 mi
2:14:30
Rank: #25528 (+58)
20K → Half
6:40 | 9:46/mi
25K· 15.53 mi
2:38:49
Rank: #25172 (+356)
Half → 25K
24:19 | 10:02/mi
30K· 18.64 mi
3:08:49
Rank: #24514 (+658)
25K → 30K
30:00 | 9:39/mi
20M
3:22:22
Rank: #24298 (+216)
30K → 20M
13:33 | 9:58/mi
21M
3:35:34
Rank: #24372 (-74)
20M → 21M
13:12 | 13:12/mi
35K· 21.75 mi
3:44:12
Rank: #24428 (-56)
21M → 35K
8:38 | 11:32/mi
23M
4:01:38
Rank: #24702 (-274)
35K → 23M
17:26 | 13:55/mi
24M
4:14:53
Rank: #24860 (-158)
23M → 24M
13:15 | 13:15/mi
40K· 24.85 mi
4:28:19
Rank: #25102 (-242)
24M → 40K
13:26 | 15:43/mi
25.2M
4:34:39
Rank: #25221 (-119)
40K → 25.2M
6:20 | 18:22/mi
Finish· 26.22 mi
4:49:46
Rank: #25496 (-275)
25.2M → Finish
15:07 | 14:50/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:30
Pace10:16 /mi
2nd Half
Distance13.11 mi
Time2:35:16
Pace11:51 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:5231:5510:1631:55
10:16
-
10K
6.21 mi12:24:581:04:0110:1832:06
10:20
+0:04
15K
9.32 mi12:56:491:35:5210:1731:51
10:15
-0:05
20K
12.43 mi13:28:472:07:5010:1731:58
10:17
+0:02
Half
13.11 mi13:35:272:14:3010:166:40
9:46
-0:31
25K
15.53 mi13:59:462:38:4910:1324:19
10:02
+0:16
30K
18.64 mi14:29:463:08:4910:0830:00
9:39
-0:23
20M
20.00 mi14:43:193:22:2210:0713:33
9:58
+0:19
21M
21.00 mi14:56:313:35:3410:1613:12
13:12
+3:14
35K
21.75 mi15:05:093:44:1210:198:38
11:32
-1:40
23M
23.00 mi15:22:354:01:3810:3017:26
13:55
+2:23
24M
24.00 mi15:35:504:14:5310:3713:15
13:15
-0:40
40K
24.85 mi15:49:164:28:1910:4813:26
15:43
+2:28
25.2M
25.20 mi15:55:364:34:3910:546:20
18:22
+2:39
Finish
26.22 mi16:10:434:49:4611:0415:07
14:50
-3:32

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

9:39 /mi

Average Pace

11:04 /mi

Slowest Pace

18:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:31:00

73% of race

Time at Slower Pace

1:18:46

27% of race

Average Pace: 11:03 /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 mi11:52:5231:5510:1631:55
10:16
#26242
10K
6.21 mi12:24:581:04:0110:1832:06
10:20
#26092
15K
9.32 mi12:56:491:35:5210:1731:51
10:15
#25888
20K
12.43 mi13:28:472:07:5010:1731:58
10:17
#25586
Half
13.11 mi13:35:272:14:3010:166:40
9:46
#25528
25K
15.53 mi13:59:462:38:4910:1324:19
10:02
#25172
30K
18.64 mi14:29:463:08:4910:0830:00
9:39
#24514
20M
20.00 mi14:43:193:22:2210:0713:33
9:58
#24298
21M
21.00 mi14:56:313:35:3410:1613:12
13:12
#24372
35K
21.75 mi15:05:093:44:1210:198:38
11:32
#24428
23M
23.00 mi15:22:354:01:3810:3017:26
13:55
#24702
24M
24.00 mi15:35:504:14:5310:3713:15
13:15
#24860
40K
24.85 mi15:49:164:28:1910:4813:26
15:43
#25102
25.2M
25.20 mi15:55:364:34:3910:546:20
18:22
#25221
Finish
26.22 mi16:10:434:49:4611:0415:07
14:50
#25496
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi26242152831528325511(Top 90%)14938(Top 93%)14938(Top 906%)
10K6.21 mi3.10 mi26092+15015204+7915204+7925977(Top 91%)15135(Top 94%)15135(Top 918%)
15K9.32 mi3.11 mi25888+20415109+9515109+9525511(Top 90%)14938(Top 93%)14938(Top 906%)
20K12.43 mi3.11 mi25586+30214968+14114968+14124807(Top 87%)14589(Top 91%)14589(Top 885%)
Half13.11 mi0.68 mi25528+5814939+2914939+2924304(Top 86%)14372(Top 89%)14372(Top 872%)
25K15.53 mi2.42 mi25172+35614757+18214757+18223335(Top 82%)13894(Top 86%)13894(Top 843%)
30K18.64 mi3.11 mi24514+65814438+31914438+31920563(Top 72%)12543(Top 78%)12543(Top 761%)
20M20.00 mi1.36 mi24298+21614324+11414324+11420839(Top 73%)12521(Top 78%)12521(Top 760%)
21M21.00 mi1.00 mi24372-7414343-1914343-1925316(Top 89%)14528(Top 90%)14528(Top 882%)
35K21.75 mi0.75 mi24428-5614358-1514358-1525157(Top 89%)14422(Top 90%)14422(Top 875%)
23M23.00 mi1.25 mi24702-27414468-11014468-11027253(Top 96%)15452(Top 96%)15452(Top 938%)
24M24.00 mi1.00 mi24860-15814529-6114529-6127102(Top 95%)15340(Top 95%)15340(Top 931%)
40K24.85 mi0.85 mi25102-24214638-10914638-10928020(Top 99%)15846(Top 98%)15846(Top 962%)
25.2M25.20 mi0.35 mi25221-11914684-4614684-4628258(Top 99%)15999(Top 99%)15999(Top 971%)
Finish26.22 mi1.02 mi25496-27514796-11214796-11228218(Top 99%)15982(Top 99%)15982(Top 970%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

25511

Males

14938

M55-59

14938

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

25977

Males

15135

M55-59

15135

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

25511

Males

14938

M55-59

14938

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

24807

Males

14589

M55-59

14589

20K→Half

12.4 - 13.1 mi

Top 86%
×2stories
+19ft-37ft

Overall

24304

Males

14372

M55-59

14372

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

23335

Males

13894

M55-59

13894

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

20563

Males

12543

M55-59

12543

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

20839

Males

12521

M55-59

12521

20M→21M

20.0 - 21.0 mi

Top 89%
×8stories
+106ft-24ft

Overall

25316

Males

14528

M55-59

14528

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

25157

Males

14422

M55-59

14422

35K→23M

21.8 - 23.0 mi

Top 96%
×5stories
+23ft-63ft

Overall

27253

Males

15452

M55-59

15452

23M→24M

23.0 - 24.0 mi

Top 95%
×6stories
+12ft-82ft

Overall

27102

Males

15340

M55-59

15340

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

28020

Males

15846

M55-59

15846

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

28258

Males

15999

M55-59

15999

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2stories
+22ft-21ft

Overall

28218

Males

15982

M55-59

15982

Passing Analysis

Category:
Athletes Passed
2174
Passed By
1428
Net Change
+746
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26242
5K → 10K24595+150#26242#26092
10K → 15K23733+204#26092#25888
15K → 20K3119+302#25888#25586
20K → Half613+58#25586#25528
Half → 25K3582+356#25528#25172
25K → 30K6580+658#25172#24514
30K → 20M2182+216#24514#24298
20M → 21M45119-74#24298#24372
21M → 35K1672-56#24372#24428
35K → 23M12286-274#24428#24702
23M → 24M9167-158#24702#24860
24M → 40K4246-242#24860#25102
40K → 25.2M0119-119#25102#25221
25.2M → Finish0275-275#25221#25496
TOTALS21741428+746
📊

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