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BOSTON MARATHON 2025

Thomas Kirchenmajer

Bib: 14979•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 48%
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
23:23
Rank: #12456
Start → 5K
23:23 | 7:32/mi
10K· 6.21 mi
47:24
Rank: #13291 (-835)
5K → 10K
24:01 | 7:44/mi
15K· 9.32 mi
1:11:30
Rank: #13495 (-204)
10K → 15K
24:06 | 7:45/mi
20K· 12.43 mi
1:35:57
Rank: #13540 (-45)
15K → 20K
24:27 | 7:52/mi
Half· 13.11 mi
1:41:15
Rank: #13559 (-19)
20K → Half
5:18 | 7:46/mi
25K· 15.53 mi
2:00:41
Rank: #13610 (-51)
Half → 25K
19:26 | 8:01/mi
30K· 18.64 mi
2:26:59
Rank: #13759 (-149)
25K → 30K
26:18 | 8:28/mi
20M
2:38:44
Rank: #13795 (-36)
30K → 20M
11:45 | 8:39/mi
21M
2:47:57
Rank: #13833 (-38)
20M → 21M
9:13 | 9:13/mi
35K· 21.75 mi
2:54:01
Rank: #13784 (+49)
21M → 35K
6:04 | 8:07/mi
23M
3:04:32
Rank: #13690 (+94)
35K → 23M
10:31 | 8:24/mi
24M
3:12:46
Rank: #13650 (+40)
23M → 24M
8:14 | 8:14/mi
40K· 24.85 mi
3:19:56
Rank: #13602 (+48)
24M → 40K
7:10 | 8:23/mi
25.2M
3:23:11
Rank: #13608 (-6)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:32:03
Rank: #13767 (-159)
25.2M → Finish
8:52 | 8:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:15
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:50:48
Pace8:27 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2523:237:3223:23
7:32
-
10K
6.21 mi11:17:2647:247:3824:01
7:44
+0:12
15K
9.32 mi11:41:321:11:307:4024:06
7:45
+0:01
20K
12.43 mi12:05:591:35:577:4324:27
7:52
+0:07
Half
13.11 mi12:11:171:41:157:435:18
7:46
-0:06
25K
15.53 mi12:30:432:00:417:4619:26
8:01
+0:15
30K
18.64 mi12:57:012:26:597:5326:18
8:28
+0:27
20M
20.00 mi13:08:462:38:447:5611:45
8:39
+0:11
21M
21.00 mi13:17:592:47:578:009:13
9:13
+0:34
35K
21.75 mi13:24:032:54:018:006:04
8:07
-1:06
23M
23.00 mi13:34:343:04:328:0110:31
8:24
+0:17
24M
24.00 mi13:42:483:12:468:028:14
8:14
-0:10
40K
24.85 mi13:49:583:19:568:037:10
8:23
+0:09
25.2M
25.20 mi13:53:133:23:118:043:15
9:25
+1:02
Finish
26.22 mi14:02:053:32:038:068:52
8:42
-0:43

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

7:32 /mi

Average Pace

8:06 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:15

48% of race

Time at Steady Pace

1:17:43

37% of race

Time at Slower Pace

33:05

16% of race

Average Pace: 8:05 /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 mi10:53:2523:237:3223:23
7:32
#12456
10K
6.21 mi11:17:2647:247:3824:01
7:44
#13291
15K
9.32 mi11:41:321:11:307:4024:06
7:45
#13495
20K
12.43 mi12:05:591:35:577:4324:27
7:52
#13540
Half
13.11 mi12:11:171:41:157:435:18
7:46
#13559
25K
15.53 mi12:30:432:00:417:4619:26
8:01
#13610
30K
18.64 mi12:57:012:26:597:5326:18
8:28
#13759
20M
20.00 mi13:08:462:38:447:5611:45
8:39
#13795
21M
21.00 mi13:17:592:47:578:009:13
9:13
#13833
35K
21.75 mi13:24:032:54:018:006:04
8:07
#13784
23M
23.00 mi13:34:343:04:328:0110:31
8:24
#13690
24M
24.00 mi13:42:483:12:468:028:14
8:14
#13650
40K
24.85 mi13:49:583:19:568:037:10
8:23
#13602
25.2M
25.20 mi13:53:133:23:118:043:15
9:25
#13608
Finish
26.22 mi14:02:053:32:038:068:52
8:42
#13767
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi124569382938213986(Top 49%)9935(Top 62%)9935(Top 498%)
10K6.21 mi3.10 mi13291-8359731-3499731-34914159(Top 50%)10062(Top 62%)10062(Top 504%)
15K9.32 mi3.11 mi13495-2049771-409771-4013986(Top 49%)9935(Top 62%)9935(Top 498%)
20K12.43 mi3.11 mi13540-459749+229749+2213831(Top 49%)9792(Top 61%)9792(Top 491%)
Half13.11 mi0.68 mi13559-199755-69755-613932(Top 49%)9876(Top 61%)9876(Top 495%)
25K15.53 mi2.42 mi13610-519749+69749+613998(Top 49%)9752(Top 61%)9752(Top 489%)
30K18.64 mi3.11 mi13759-1499751-29751-214535(Top 51%)9846(Top 61%)9846(Top 493%)
20M20.00 mi1.36 mi13795-369730+219730+2114688(Top 52%)9773(Top 61%)9773(Top 490%)
21M21.00 mi1.00 mi13833-389715+159715+1514692(Top 52%)9656(Top 60%)9656(Top 484%)
35K21.75 mi0.75 mi13784+499674+419674+4112968(Top 46%)8792(Top 55%)8792(Top 440%)
23M23.00 mi1.25 mi13690+949596+789596+7812662(Top 45%)8547(Top 53%)8547(Top 428%)
24M24.00 mi1.00 mi13650+409550+469550+4612787(Top 45%)8550(Top 53%)8550(Top 428%)
40K24.85 mi0.85 mi13602+489501+499501+4912658(Top 45%)8364(Top 52%)8364(Top 419%)
25.2M25.20 mi0.35 mi13608-69495+69495+614092(Top 50%)8977(Top 56%)8977(Top 450%)
Finish26.22 mi1.02 mi13767-1599534-399534-3917449(Top 61%)10611(Top 66%)10611(Top 532%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

13986

Males

9935

M50-54

9935

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

14159

Males

10062

M50-54

10062

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

13986

Males

9935

M50-54

9935

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

13831

Males

9792

M50-54

9792

20K→Half

12.4 - 13.1 mi

Top 49%
×2stories
+19ft-37ft

Overall

13932

Males

9876

M50-54

9876

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13998

Males

9752

M50-54

9752

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

14535

Males

9846

M50-54

9846

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

14688

Males

9773

M50-54

9773

20M→21M

20.0 - 21.0 mi

Top 52%
×8stories
+106ft-24ft

Overall

14692

Males

9656

M50-54

9656

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

12968

Males

8792

M50-54

8792

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12662

Males

8547

M50-54

8547

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12787

Males

8550

M50-54

8550

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12658

Males

8364

M50-54

8364

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14092

Males

8977

M50-54

8977

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

17449

Males

10611

M50-54

10611

Passing Analysis

Category:
Athletes Passed
1478
Passed By
2789
Net Change
-1311
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12456
5K → 10K60895-835#12456#13291
10K → 15K146350-204#13291#13495
15K → 20K178223-45#13495#13540
20K → Half2039-19#13540#13559
Half → 25K169220-51#13559#13610
25K → 30K201350-149#13610#13759
30K → 20M106142-36#13759#13795
20M → 21M91129-38#13795#13833
21M → 35K8031+49#13833#13784
35K → 23M15561+94#13784#13690
23M → 24M10363+40#13690#13650
24M → 40K10557+48#13650#13602
40K → 25.2M3541-6#13602#13608
25.2M → Finish29188-159#13608#13767
TOTALS14782789-1311
📊

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