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BOSTON MARATHON 2025

Jan Kolbe

Bib: 14705•M

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:20
Rank: #15095
Start → 5K
24:20 | 7:50/mi
10K· 6.21 mi
49:39
Rank: #16432 (-1337)
5K → 10K
25:19 | 8:09/mi
15K· 9.32 mi
1:15:38
Rank: #17188 (-756)
10K → 15K
25:59 | 8:22/mi
20K· 12.43 mi
1:41:57
Rank: #17365 (-177)
15K → 20K
26:19 | 8:28/mi
Half· 13.11 mi
1:47:34
Rank: #17360 (+5)
20K → Half
5:37 | 8:14/mi
25K· 15.53 mi
2:08:18
Rank: #17338 (+22)
Half → 25K
20:44 | 8:33/mi
30K· 18.64 mi
2:36:04
Rank: #17274 (+64)
25K → 30K
27:46 | 8:56/mi
20M
2:48:37
Rank: #17333 (-59)
30K → 20M
12:33 | 9:14/mi
21M
2:59:10
Rank: #17560 (-227)
20M → 21M
10:33 | 10:33/mi
35K· 21.75 mi
3:05:39
Rank: #17518 (+42)
21M → 35K
6:29 | 8:40/mi
23M
3:17:08
Rank: #17481 (+37)
35K → 23M
11:29 | 9:10/mi
24M
3:25:58
Rank: #17428 (+53)
23M → 24M
8:50 | 8:50/mi
40K· 24.85 mi
3:33:51
Rank: #17435 (-7)
24M → 40K
7:53 | 9:13/mi
25.2M
3:37:51
Rank: #17544 (-109)
40K → 25.2M
4:00 | 11:36/mi
Finish· 26.22 mi
3:47:21
Rank: #17695 (-151)
25.2M → Finish
9:30 | 9:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:34
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time1:59:47
Pace9:08 /mi
📊Positive Split: 11.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:2624:207:5024:20
7:50
-
10K
6.21 mi11:19:4549:397:5925:19
8:09
+0:19
15K
9.32 mi11:45:441:15:388:0725:59
8:22
+0:13
20K
12.43 mi12:12:031:41:578:1226:19
8:28
+0:06
Half
13.11 mi12:17:401:47:348:125:37
8:14
-0:14
25K
15.53 mi12:38:242:08:188:1620:44
8:33
+0:19
30K
18.64 mi13:06:102:36:048:2227:46
8:56
+0:23
20M
20.00 mi13:18:432:48:378:2612:33
9:14
+0:18
21M
21.00 mi13:29:162:59:108:3210:33
10:33
+1:19
35K
21.75 mi13:35:453:05:398:326:29
8:40
-1:53
23M
23.00 mi13:47:143:17:088:3411:29
9:10
+0:30
24M
24.00 mi13:56:043:25:588:358:50
8:50
-0:20
40K
24.85 mi14:03:573:33:518:367:53
9:13
+0:23
25.2M
25.20 mi14:07:573:37:518:394:00
11:36
+2:23
Finish
26.22 mi14:17:273:47:218:419:30
9:19
-2:17

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

7:50 /mi

Average Pace

8:41 /mi

Slowest Pace

11:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

55:16

24% of race

Time at Steady Pace

2:28:02

65% of race

Time at Slower Pace

24:03

11% of race

Average Pace: 8:40 /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 mi10:54:2624:207:5024:20
7:50
#15095
10K
6.21 mi11:19:4549:397:5925:19
8:09
#16432
15K
9.32 mi11:45:441:15:388:0725:59
8:22
#17188
20K
12.43 mi12:12:031:41:578:1226:19
8:28
#17365
Half
13.11 mi12:17:401:47:348:125:37
8:14
#17360
25K
15.53 mi12:38:242:08:188:1620:44
8:33
#17338
30K
18.64 mi13:06:102:36:048:2227:46
8:56
#17274
20M
20.00 mi13:18:432:48:378:2612:33
9:14
#17333
21M
21.00 mi13:29:162:59:108:3210:33
10:33
#17560
35K
21.75 mi13:35:453:05:398:326:29
8:40
#17518
23M
23.00 mi13:47:143:17:088:3411:29
9:10
#17481
24M
24.00 mi13:56:043:25:588:358:50
8:50
#17428
40K
24.85 mi14:03:573:33:518:367:53
9:13
#17435
25.2M
25.20 mi14:07:573:37:518:394:00
11:36
#17544
Finish
26.22 mi14:17:273:47:218:419:30
9:19
#17695
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi15095104651046518458(Top 65%)11819(Top 73%)11819(Top 592%)
10K6.21 mi3.10 mi16432-133710988-52310988-52317528(Top 62%)11465(Top 71%)11465(Top 574%)
15K9.32 mi3.11 mi17188-75611316-32811316-32818458(Top 65%)11819(Top 73%)11819(Top 592%)
20K12.43 mi3.11 mi17365-17711358-4211358-4218012(Top 63%)11615(Top 72%)11615(Top 582%)
Half13.11 mi0.68 mi17360+511351+711351+717447(Top 61%)11386(Top 71%)11386(Top 570%)
25K15.53 mi2.42 mi17338+2211326+2511326+2517483(Top 62%)11310(Top 70%)11310(Top 567%)
30K18.64 mi3.11 mi17274+6411247+7911247+7917345(Top 61%)11081(Top 69%)11081(Top 555%)
20M20.00 mi1.36 mi17333-5911239+811239+817939(Top 63%)11211(Top 70%)11211(Top 562%)
21M21.00 mi1.00 mi17560-22711307-6811307-6820157(Top 71%)12105(Top 75%)12105(Top 606%)
35K21.75 mi0.75 mi17518+4211272+3511272+3516454(Top 58%)10377(Top 64%)10377(Top 520%)
23M23.00 mi1.25 mi17481+3711218+5411218+5417191(Top 61%)10596(Top 66%)10596(Top 531%)
24M24.00 mi1.00 mi17428+5311173+4511173+4516484(Top 58%)10248(Top 64%)10248(Top 513%)
40K24.85 mi0.85 mi17435-711145+2811145+2817430(Top 61%)10568(Top 66%)10568(Top 529%)
25.2M25.20 mi0.35 mi17544-10911180-3511180-3522256(Top 78%)12906(Top 80%)12906(Top 647%)
Finish26.22 mi1.02 mi17695-15111238-5811238-5820453(Top 72%)12028(Top 75%)12028(Top 603%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21stories
+97ft-345ft

Overall

18458

Males

11819

M50-54

11819

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

17528

Males

11465

M50-54

11465

10K→15K

6.2 - 9.3 mi

Top 65%
×3stories
+67ft-78ft

Overall

18458

Males

11819

M50-54

11819

15K→20K

9.3 - 12.4 mi

Top 63%
×5stories
+106ft-86ft

Overall

18012

Males

11615

M50-54

11615

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

17447

Males

11386

M50-54

11386

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17483

Males

11310

M50-54

11310

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

17345

Males

11081

M50-54

11081

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

17939

Males

11211

M50-54

11211

20M→21M

20.0 - 21.0 mi

Top 71%
×8stories
+106ft-24ft

Overall

20157

Males

12105

M50-54

12105

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

16454

Males

10377

M50-54

10377

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

17191

Males

10596

M50-54

10596

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

16484

Males

10248

M50-54

10248

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17430

Males

10568

M50-54

10568

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22256

Males

12906

M50-54

12906

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

20453

Males

12028

M50-54

12028

Passing Analysis

Category:
Athletes Passed
1276
Passed By
3876
Net Change
-2600
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15095
5K → 10K481385-1337#15095#16432
10K → 15K60816-756#16432#17188
15K → 20K136313-177#17188#17365
20K → Half3530+5#17365#17360
Half → 25K183161+22#17360#17338
25K → 30K250186+64#17338#17274
30K → 20M96155-59#17274#17333
20M → 21M54281-227#17333#17560
21M → 35K8846+42#17560#17518
35K → 23M13295+37#17518#17481
23M → 24M10148+53#17481#17428
24M → 40K6774-7#17428#17435
40K → 25.2M5114-109#17435#17544
25.2M → Finish21172-151#17544#17695
TOTALS12763876-2600
📊

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