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BOSTON MARATHON 2025

Kory Bewersdorf

Bib: 14846•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 34%
Gender (Male)
#0 / 16105
Top 47%
Masters (Masters Men)
#0 / 10463
Top 36%
Division (M50-54)
#0 / 1996
Top 36%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:40
Rank: #13257
Start → 5K
23:40 | 7:37/mi
10K· 6.21 mi
47:08
Rank: #12879 (+378)
5K → 10K
23:28 | 7:33/mi
15K· 9.32 mi
1:10:14
Rank: #12283 (+596)
10K → 15K
23:06 | 7:26/mi
20K· 12.43 mi
1:33:21
Rank: #11722 (+561)
15K → 20K
23:07 | 7:26/mi
Half· 13.11 mi
1:38:16
Rank: #11597 (+125)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:55:49
Rank: #10935 (+662)
Half → 25K
17:33 | 7:14/mi
30K· 18.64 mi
2:19:20
Rank: #10351 (+584)
25K → 30K
23:31 | 7:34/mi
20M
2:29:39
Rank: #10073 (+278)
30K → 20M
10:19 | 7:36/mi
21M
2:37:37
Rank: #9835 (+238)
20M → 21M
7:58 | 7:58/mi
35K· 21.75 mi
2:43:13
Rank: #9776 (+59)
21M → 35K
5:36 | 7:29/mi
23M
2:52:50
Rank: #9623 (+153)
35K → 23M
9:37 | 7:41/mi
24M
3:00:38
Rank: #9606 (+17)
23M → 24M
7:48 | 7:48/mi
40K· 24.85 mi
3:07:28
Rank: #9598 (+8)
24M → 40K
6:50 | 8:00/mi
25.2M
3:10:34
Rank: #9622 (-24)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:18:49
Rank: #9763 (-141)
25.2M → Finish
8:15 | 8:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:16
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:40:33
Pace7:40 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:3423:407:3723:40
7:37
-
10K
6.21 mi11:18:0247:087:3523:28
7:33
-0:04
15K
9.32 mi11:41:081:10:147:3223:06
7:26
-0:07
20K
12.43 mi12:04:151:33:217:3123:07
7:26
0:00
Half
13.11 mi12:09:101:38:167:304:55
7:12
-0:14
25K
15.53 mi12:26:431:55:497:2717:33
7:14
+0:02
30K
18.64 mi12:50:142:19:207:2823:31
7:34
+0:20
20M
20.00 mi13:00:332:29:397:2910:19
7:36
+0:02
21M
21.00 mi13:08:312:37:377:307:58
7:58
+0:22
35K
21.75 mi13:14:072:43:137:305:36
7:29
-0:29
23M
23.00 mi13:23:442:52:507:319:37
7:41
+0:12
24M
24.00 mi13:31:323:00:387:327:48
7:48
+0:07
40K
24.85 mi13:38:223:07:287:336:50
8:00
+0:12
25.2M
25.20 mi13:41:283:10:347:343:06
8:59
+0:59
Finish
26.22 mi13:49:433:18:497:358:15
8:06
-0:53

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

7:12 /mi

Average Pace

7:35 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

22:28

11% of race

Time at Steady Pace

2:30:12

76% of race

Time at Slower Pace

26:09

13% of race

Average Pace: 7:35 /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 mi10:54:3423:407:3723:40
7:37
#13257
10K
6.21 mi11:18:0247:087:3523:28
7:33
#12879
15K
9.32 mi11:41:081:10:147:3223:06
7:26
#12283
20K
12.43 mi12:04:151:33:217:3123:07
7:26
#11722
Half
13.11 mi12:09:101:38:167:304:55
7:12
#11597
25K
15.53 mi12:26:431:55:497:2717:33
7:14
#10935
30K
18.64 mi12:50:142:19:207:2823:31
7:34
#10351
20M
20.00 mi13:00:332:29:397:2910:19
7:36
#10073
21M
21.00 mi13:08:312:37:377:307:58
7:58
#9835
35K
21.75 mi13:14:072:43:137:305:36
7:29
#9776
23M
23.00 mi13:23:442:52:507:319:37
7:41
#9623
24M
24.00 mi13:31:323:00:387:327:48
7:48
#9606
40K
24.85 mi13:38:223:07:287:336:50
8:00
#9598
25.2M
25.20 mi13:41:283:10:347:343:06
8:59
#9622
Finish
26.22 mi13:49:433:18:497:358:15
8:06
#9763
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi132579746974611176(Top 39%)8681(Top 54%)8681(Top 435%)
10K6.21 mi3.10 mi12879+3789563+1839563+18312571(Top 44%)9400(Top 58%)9400(Top 471%)
15K9.32 mi3.11 mi12283+5969254+3099254+30911176(Top 39%)8681(Top 54%)8681(Top 435%)
20K12.43 mi3.11 mi11722+5618962+2928962+29210236(Top 36%)8127(Top 50%)8127(Top 407%)
Half13.11 mi0.68 mi11597+1258905+578905+579120(Top 32%)7552(Top 47%)7552(Top 378%)
25K15.53 mi2.42 mi10935+6628551+3548551+3547895(Top 28%)6703(Top 42%)6703(Top 336%)
30K18.64 mi3.11 mi10351+5848198+3538198+3538215(Top 29%)6717(Top 42%)6717(Top 337%)
20M20.00 mi1.36 mi10073+2788024+1748024+1747628(Top 27%)6230(Top 39%)6230(Top 312%)
21M21.00 mi1.00 mi9835+2387862+1627862+1627171(Top 25%)5786(Top 36%)5786(Top 290%)
35K21.75 mi0.75 mi9776+597806+567806+568504(Top 30%)6596(Top 41%)6596(Top 330%)
23M23.00 mi1.25 mi9623+1537681+1257681+1257778(Top 27%)6037(Top 37%)6037(Top 302%)
24M24.00 mi1.00 mi9606+177631+507631+509781(Top 34%)7052(Top 44%)7052(Top 353%)
40K24.85 mi0.85 mi9598+87592+397592+3910109(Top 36%)7100(Top 44%)7100(Top 356%)
25.2M25.20 mi0.35 mi9622-247584+87584+811669(Top 41%)7803(Top 48%)7803(Top 391%)
Finish26.22 mi1.02 mi9763-1417621-377621-3713523(Top 48%)8770(Top 54%)8770(Top 439%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

11176

Males

8681

M50-54

8681

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

12571

Males

9400

M50-54

9400

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

11176

Males

8681

M50-54

8681

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

10236

Males

8127

M50-54

8127

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

9120

Males

7552

M50-54

7552

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7895

Males

6703

M50-54

6703

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

8215

Males

6717

M50-54

6717

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7628

Males

6230

M50-54

6230

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

7171

Males

5786

M50-54

5786

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8504

Males

6596

M50-54

6596

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7778

Males

6037

M50-54

6037

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9781

Males

7052

M50-54

7052

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10109

Males

7100

M50-54

7100

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11669

Males

7803

M50-54

7803

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13523

Males

8770

M50-54

8770

Passing Analysis

Category:
Athletes Passed
4138*
Passed By
644
Net Change
+3494
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13257
5K → 10K507129+378#13257#12879
10K → 15K61923+596#12879#12283
15K → 20K57413+561#12283#11722
20K → Half1294+125#11722#11597
Half → 25K6620+662#11597#10935
25K → 30K59612+584#10935#10351
30K → 20M2868+278#10351#10073
20M → 21M250*12+238#10073#9835
21M → 35K9031+59#9835#9776
35K → 23M18633+153#9776#9623
23M → 24M10083+17#9623#9606
24M → 40K7567+8#9606#9598
40K → 25.2M2650-24#9598#9622
25.2M → Finish38179-141#9622#9763
TOTALS4138*644+3494

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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