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BOSTON MARATHON 2025

Matthew Klein

Bib: 8870•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 22%
Gender (Male)
#0 / 16105
Top 34%
Masters (Masters Men)
#0 / 10463
Top 20%
Division (M40-44)
#0 / 2247
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:12
Rank: #6493
Start → 5K
21:12 | 6:49/mi
10K· 6.21 mi
42:32
Rank: #6704 (-211)
5K → 10K
21:20 | 6:52/mi
15K· 9.32 mi
1:04:04
Rank: #6853 (-149)
10K → 15K
21:32 | 6:56/mi
20K· 12.43 mi
1:26:04
Rank: #7033 (-180)
15K → 20K
22:00 | 7:05/mi
Half· 13.11 mi
1:30:50
Rank: #7047 (-14)
20K → Half
4:46 | 6:59/mi
25K· 15.53 mi
1:48:18
Rank: #7073 (-26)
Half → 25K
17:28 | 7:12/mi
30K· 18.64 mi
2:11:26
Rank: #7000 (+73)
25K → 30K
23:08 | 7:27/mi
20M
2:21:30
Rank: #6867 (+133)
30K → 20M
10:04 | 7:24/mi
21M
2:29:19
Rank: #6760 (+107)
20M → 21M
7:49 | 7:49/mi
35K· 21.75 mi
2:34:38
Rank: #6684 (+76)
21M → 35K
5:19 | 7:06/mi
23M
2:44:02
Rank: #6602 (+82)
35K → 23M
9:24 | 7:30/mi
24M
2:51:26
Rank: #6571 (+31)
23M → 24M
7:24 | 7:24/mi
40K· 24.85 mi
2:57:32
Rank: #6446 (+125)
24M → 40K
6:06 | 7:08/mi
25.2M
3:00:09
Rank: #6389 (+57)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
3:06:58
Rank: #6224 (+165)
25.2M → Finish
6:49 | 6:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:50
Pace6:56 /mi
2nd Half
Distance13.11 mi
Time1:36:08
Pace7:20 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:2721:126:4921:12
6:49
-
10K
6.21 mi11:07:4742:326:5121:20
6:52
+0:03
15K
9.32 mi11:29:191:04:046:5221:32
6:56
+0:04
20K
12.43 mi11:51:191:26:046:5622:00
7:05
+0:09
Half
13.11 mi11:56:051:30:506:564:46
6:59
-0:06
25K
15.53 mi12:13:331:48:186:5817:28
7:12
+0:13
30K
18.64 mi12:36:412:11:267:0323:08
7:27
+0:15
20M
20.00 mi12:46:452:21:307:0410:04
7:24
-0:03
21M
21.00 mi12:54:342:29:197:077:49
7:49
+0:25
35K
21.75 mi12:59:532:34:387:075:19
7:06
-0:43
23M
23.00 mi13:09:172:44:027:089:24
7:30
+0:24
24M
24.00 mi13:16:412:51:267:097:24
7:24
-0:06
40K
24.85 mi13:22:472:57:327:096:06
7:08
-0:16
25.2M
25.20 mi13:25:243:00:097:092:37
7:35
+0:27
Finish
26.22 mi13:32:133:06:587:086:49
6:41
-0:54

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

6:41 /mi

Average Pace

7:08 /mi

Slowest Pace

7:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:32

68% of race

Time at Steady Pace

1:00:26

32% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:08 /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 mi10:46:2721:126:4921:12
6:49
#6493
10K
6.21 mi11:07:4742:326:5121:20
6:52
#6704
15K
9.32 mi11:29:191:04:046:5221:32
6:56
#6853
20K
12.43 mi11:51:191:26:046:5622:00
7:05
#7033
Half
13.11 mi11:56:051:30:506:564:46
6:59
#7047
25K
15.53 mi12:13:331:48:186:5817:28
7:12
#7073
30K
18.64 mi12:36:412:11:267:0323:08
7:27
#7000
20M
20.00 mi12:46:452:21:307:0410:04
7:24
#6867
21M
21.00 mi12:54:342:29:197:077:49
7:49
#6760
35K
21.75 mi12:59:532:34:387:075:19
7:06
#6684
23M
23.00 mi13:09:172:44:027:089:24
7:30
#6602
24M
24.00 mi13:16:412:51:267:097:24
7:24
#6571
40K
24.85 mi13:22:472:57:327:096:06
7:08
#6446
25.2M
25.20 mi13:25:243:00:097:092:37
7:35
#6389
Finish
26.22 mi13:32:133:06:587:086:49
6:41
#6224
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6493591059107154(Top 25%)6360(Top 39%)6360(Top 283%)
10K6.21 mi3.10 mi6704-2116065-1556065-1556986(Top 25%)6264(Top 39%)6264(Top 279%)
15K9.32 mi3.11 mi6853-1496164-996164-997154(Top 25%)6360(Top 39%)6360(Top 283%)
20K12.43 mi3.11 mi7033-1806298-1346298-1347398(Top 26%)6485(Top 40%)6485(Top 289%)
Half13.11 mi0.68 mi7047-146305-76305-77410(Top 26%)6500(Top 40%)6500(Top 289%)
25K15.53 mi2.42 mi7073-266311-66311-67624(Top 27%)6519(Top 40%)6519(Top 290%)
30K18.64 mi3.11 mi7000+736209+1026209+1027334(Top 26%)6172(Top 38%)6172(Top 275%)
20M20.00 mi1.36 mi6867+1336084+1256084+1256408(Top 23%)5461(Top 34%)5461(Top 243%)
21M21.00 mi1.00 mi6760+1075983+1015983+1016261(Top 22%)5229(Top 32%)5229(Top 233%)
35K21.75 mi0.75 mi6684+765909+745909+745992(Top 21%)5049(Top 31%)5049(Top 225%)
23M23.00 mi1.25 mi6602+825816+935816+936636(Top 23%)5377(Top 33%)5377(Top 239%)
24M24.00 mi1.00 mi6571+315770+465770+467011(Top 25%)5526(Top 34%)5526(Top 246%)
40K24.85 mi0.85 mi6446+1255663+1075663+1074660(Top 16%)3965(Top 25%)3965(Top 176%)
25.2M25.20 mi0.35 mi6389+575615+485615+483807(Top 13%)3289(Top 20%)3289(Top 146%)
Finish26.22 mi1.02 mi6224+1655474+1415474+1413798(Top 13%)3286(Top 20%)3286(Top 146%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

7154

Males

6360

M40-44

6360

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

6986

Males

6264

M40-44

6264

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

7154

Males

6360

M40-44

6360

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

7398

Males

6485

M40-44

6485

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

7410

Males

6500

M40-44

6500

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7624

Males

6519

M40-44

6519

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7334

Males

6172

M40-44

6172

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6408

Males

5461

M40-44

5461

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

6261

Males

5229

M40-44

5229

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5992

Males

5049

M40-44

5049

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6636

Males

5377

M40-44

5377

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

7011

Males

5526

M40-44

5526

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4660

Males

3965

M40-44

3965

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3807

Males

3289

M40-44

3289

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3798

Males

3286

M40-44

3286

Passing Analysis

Category:
Athletes Passed
1575
Passed By
1306
Net Change
+269
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6493
5K → 10K116327-211#6493#6704
10K → 15K99248-149#6704#6853
15K → 20K74254-180#6853#7033
20K → Half2236-14#7033#7047
Half → 25K108134-26#7047#7073
25K → 30K209136+73#7073#7000
30K → 20M16835+133#7000#6867
20M → 21M13326+107#6867#6760
21M → 35K8610+76#6760#6684
35K → 23M12745+82#6684#6602
23M → 24M7645+31#6602#6571
24M → 40K1316+125#6571#6446
40K → 25.2M581+57#6446#6389
25.2M → Finish1683+165#6389#6224
TOTALS15751306+269
📊

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