Boston Marathon logo
BOSTON MARATHON 2025

Thomas Schleper

Bib: 5518•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 22%
Masters (Masters Men)
#0 / 10463
Top 9%
Division (M40-44)
#0 / 2247
Top 25%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:27
Rank: #4431
Start → 5K
20:27 | 6:35/mi
10K· 6.21 mi
40:55
Rank: #4372 (+59)
5K → 10K
20:28 | 6:35/mi
15K· 9.32 mi
1:01:25
Rank: #4314 (+58)
10K → 15K
20:30 | 6:36/mi
20K· 12.43 mi
1:22:01
Rank: #4158 (+156)
15K → 20K
20:36 | 6:38/mi
Half· 13.11 mi
1:26:29
Rank: #4140 (+18)
20K → Half
4:28 | 6:33/mi
25K· 15.53 mi
1:42:35
Rank: #4013 (+127)
Half → 25K
16:06 | 6:38/mi
30K· 18.64 mi
2:04:03
Rank: #3974 (+39)
25K → 30K
21:28 | 6:55/mi
20M
2:13:40
Rank: #3991 (-17)
30K → 20M
9:37 | 7:05/mi
21M
2:21:12
Rank: #4021 (-30)
20M → 21M
7:32 | 7:32/mi
35K· 21.75 mi
2:26:14
Rank: #3982 (+39)
21M → 35K
5:02 | 6:44/mi
23M
2:35:11
Rank: #4002 (-20)
35K → 23M
8:57 | 7:09/mi
24M
2:42:01
Rank: #3960 (+42)
23M → 24M
6:50 | 6:50/mi
40K· 24.85 mi
2:47:56
Rank: #3904 (+56)
24M → 40K
5:55 | 6:55/mi
25.2M
2:50:32
Rank: #3891 (+13)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
2:57:29
Rank: #3885 (+6)
25.2M → Finish
6:57 | 6:49/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:29
Pace6:36 /mi
2nd Half
Distance13.11 mi
Time1:31:00
Pace6:57 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5420:276:3520:27
6:35
-
10K
6.21 mi10:45:2240:556:3520:28
6:35
0:00
15K
9.32 mi11:05:521:01:256:3520:30
6:36
+0:01
20K
12.43 mi11:26:281:22:016:3620:36
6:38
+0:02
Half
13.11 mi11:30:561:26:296:364:28
6:33
-0:05
25K
15.53 mi11:47:021:42:356:3616:06
6:38
+0:05
30K
18.64 mi12:08:302:04:036:3921:28
6:55
+0:17
20M
20.00 mi12:18:072:13:406:419:37
7:05
+0:10
21M
21.00 mi12:25:392:21:126:437:32
7:32
+0:27
35K
21.75 mi12:30:412:26:146:435:02
6:44
-0:48
23M
23.00 mi12:39:382:35:116:458:57
7:09
+0:25
24M
24.00 mi12:46:282:42:016:456:50
6:50
-0:19
40K
24.85 mi12:52:232:47:566:455:55
6:55
+0:05
25.2M
25.20 mi12:54:592:50:326:462:36
7:32
+0:37
Finish
26.22 mi13:01:562:57:296:466:57
6:49
-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

6:33 /mi

Average Pace

6:46 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:21

94% of race

Time at Steady Pace

10:08

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:46 /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 mi10:24:5420:276:3520:27
6:35
#4431
10K
6.21 mi10:45:2240:556:3520:28
6:35
#4372
15K
9.32 mi11:05:521:01:256:3520:30
6:36
#4314
20K
12.43 mi11:26:281:22:016:3620:36
6:38
#4158
Half
13.11 mi11:30:561:26:296:364:28
6:33
#4140
25K
15.53 mi11:47:021:42:356:3616:06
6:38
#4013
30K
18.64 mi12:08:302:04:036:3921:28
6:55
#3974
20M
20.00 mi12:18:072:13:406:419:37
7:05
#3991
21M
21.00 mi12:25:392:21:126:437:32
7:32
#4021
35K
21.75 mi12:30:412:26:146:435:02
6:44
#3982
23M
23.00 mi12:39:382:35:116:458:57
7:09
#4002
24M
24.00 mi12:46:282:42:016:456:50
6:50
#3960
40K
24.85 mi12:52:232:47:566:455:55
6:55
#3904
25.2M
25.20 mi12:54:592:50:326:462:36
7:32
#3891
Finish
26.22 mi13:01:562:57:296:466:57
6:49
#3885
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4431416741674203(Top 15%)3952(Top 25%)3952(Top 176%)
10K6.21 mi3.10 mi4372+594111+564111+564354(Top 15%)4087(Top 25%)4087(Top 182%)
15K9.32 mi3.11 mi4314+584056+554056+554203(Top 15%)3952(Top 25%)3952(Top 176%)
20K12.43 mi3.11 mi4158+1563912+1443912+1443894(Top 14%)3668(Top 23%)3668(Top 163%)
Half13.11 mi0.68 mi4140+183895+173895+173964(Top 14%)3728(Top 23%)3728(Top 166%)
25K15.53 mi2.42 mi4013+1273774+1213774+1213717(Top 13%)3491(Top 22%)3491(Top 155%)
30K18.64 mi3.11 mi3974+393736+383736+384124(Top 15%)3791(Top 24%)3791(Top 169%)
20M20.00 mi1.36 mi3991-173743-73743-74519(Top 16%)4103(Top 25%)4103(Top 183%)
21M21.00 mi1.00 mi4021-303765-223765-224749(Top 17%)4183(Top 26%)4183(Top 186%)
35K21.75 mi0.75 mi3982+393723+423723+423654(Top 13%)3301(Top 20%)3301(Top 147%)
23M23.00 mi1.25 mi4002-203727-43727-44559(Top 16%)3991(Top 25%)3991(Top 178%)
24M24.00 mi1.00 mi3960+423680+473680+473681(Top 13%)3277(Top 20%)3277(Top 146%)
40K24.85 mi0.85 mi3904+563626+543626+543431(Top 12%)3050(Top 19%)3050(Top 136%)
25.2M25.20 mi0.35 mi3891+133611+153611+153534(Top 12%)3078(Top 19%)3078(Top 137%)
Finish26.22 mi1.02 mi3885+63594+173594+174596(Top 16%)3846(Top 24%)3846(Top 171%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

4203

Males

3952

M40-44

3952

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4354

Males

4087

M40-44

4087

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

4203

Males

3952

M40-44

3952

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3894

Males

3668

M40-44

3668

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3964

Males

3728

M40-44

3728

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3717

Males

3491

M40-44

3491

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4124

Males

3791

M40-44

3791

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4519

Males

4103

M40-44

4103

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4749

Males

4183

M40-44

4183

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3654

Males

3301

M40-44

3301

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4559

Males

3991

M40-44

3991

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3681

Males

3277

M40-44

3277

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3431

Males

3050

M40-44

3050

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3534

Males

3078

M40-44

3078

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4596

Males

3846

M40-44

3846

Passing Analysis

Category:
Athletes Passed
1273
Passed By
727
Net Change
+546
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4431
5K → 10K166107+59#4431#4372
10K → 15K13375+58#4372#4314
15K → 20K19034+156#4314#4158
20K → Half2911+18#4158#4140
Half → 25K15629+127#4140#4013
25K → 30K146107+39#4013#3974
30K → 20M4966-17#3974#3991
20M → 21M5686-30#3991#4021
21M → 35K5819+39#4021#3982
35K → 23M6484-20#3982#4002
23M → 24M7129+42#4002#3960
24M → 40K6711+56#3960#3904
40K → 25.2M2512+13#3904#3891
25.2M → Finish6357+6#3891#3885
TOTALS1273727+546
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing