Boston Marathon logo
BOSTON MARATHON 2025

Matthew Deschoolmeester

Bib: 12262•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 31%
Gender (Male)
#0 / 16105
Top 45%
Masters (Masters Men)
#0 / 10463
Top 33%
Division (M50-54)
#0 / 1996
Top 31%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:55
Rank: #11086
Start → 5K
22:55 | 7:23/mi
10K· 6.21 mi
45:46
Rank: #10906 (+180)
5K → 10K
22:51 | 7:21/mi
15K· 9.32 mi
1:08:36
Rank: #10713 (+193)
10K → 15K
22:50 | 7:21/mi
20K· 12.43 mi
1:31:38
Rank: #10521 (+192)
15K → 20K
23:02 | 7:25/mi
Half· 13.11 mi
1:36:34
Rank: #10448 (+73)
20K → Half
4:56 | 7:14/mi
25K· 15.53 mi
1:54:33
Rank: #10221 (+227)
Half → 25K
17:59 | 7:25/mi
30K· 18.64 mi
2:18:09
Rank: #9796 (+425)
25K → 30K
23:36 | 7:36/mi
20M
2:28:29
Rank: #9583 (+213)
30K → 20M
10:20 | 7:36/mi
21M
2:36:40
Rank: #9487 (+96)
20M → 21M
8:11 | 8:11/mi
35K· 21.75 mi
2:42:14
Rank: #9399 (+88)
21M → 35K
5:34 | 7:26/mi
23M
2:51:41
Rank: #9188 (+211)
35K → 23M
9:27 | 7:33/mi
24M
2:59:13
Rank: #9097 (+91)
23M → 24M
7:32 | 7:32/mi
40K· 24.85 mi
3:05:47
Rank: #9018 (+79)
24M → 40K
6:34 | 7:41/mi
25.2M
3:08:47
Rank: #9021 (-3)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:16:16
Rank: #8941 (+80)
25.2M → Finish
7:29 | 7:21/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
Time1:36:34
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:39:42
Pace7:36 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5522:557:2322:55
7:23
-
10K
6.21 mi11:14:4645:467:2222:51
7:21
-0:02
15K
9.32 mi11:37:361:08:367:2222:50
7:21
0:00
20K
12.43 mi12:00:381:31:387:2223:02
7:25
+0:04
Half
13.11 mi12:05:341:36:347:224:56
7:14
-0:11
25K
15.53 mi12:23:331:54:337:2217:59
7:25
+0:11
30K
18.64 mi12:47:092:18:097:2523:36
7:36
+0:11
20M
20.00 mi12:57:292:28:297:2510:20
7:36
0:00
21M
21.00 mi13:05:402:36:407:288:11
8:11
+0:35
35K
21.75 mi13:11:142:42:147:285:34
7:26
-0:45
23M
23.00 mi13:20:412:51:417:289:27
7:33
+0:07
24M
24.00 mi13:28:132:59:137:287:32
7:32
-0:01
40K
24.85 mi13:34:473:05:477:286:34
7:41
+0:09
25.2M
25.20 mi13:37:473:08:477:293:00
8:42
+1:01
Finish
26.22 mi13:45:163:16:167:297:29
7:21
-1:21

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

7:14 /mi

Average Pace

7:29 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:56

3% of race

Time at Steady Pace

2:53:35

88% of race

Time at Slower Pace

17:45

9% of race

Average Pace: 7:29 /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 mi10:51:5522:557:2322:55
7:23
#11086
10K
6.21 mi11:14:4645:467:2222:51
7:21
#10906
15K
9.32 mi11:37:361:08:367:2222:50
7:21
#10713
20K
12.43 mi12:00:381:31:387:2223:02
7:25
#10521
Half
13.11 mi12:05:341:36:347:224:56
7:14
#10448
25K
15.53 mi12:23:331:54:337:2217:59
7:25
#10221
30K
18.64 mi12:47:092:18:097:2523:36
7:36
#9796
20M
20.00 mi12:57:292:28:297:2510:20
7:36
#9583
21M
21.00 mi13:05:402:36:407:288:11
8:11
#9487
35K
21.75 mi13:11:142:42:147:285:34
7:26
#9399
23M
23.00 mi13:20:412:51:417:289:27
7:33
#9188
24M
24.00 mi13:28:132:59:137:287:32
7:32
#9097
40K
24.85 mi13:34:473:05:477:286:34
7:41
#9018
25.2M
25.20 mi13:37:473:08:477:293:00
8:42
#9021
Finish
26.22 mi13:45:163:16:167:297:29
7:21
#8941
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi110868728872810387(Top 37%)8284(Top 51%)8284(Top 415%)
10K6.21 mi3.10 mi10906+1808616+1128616+11210773(Top 38%)8543(Top 53%)8543(Top 428%)
15K9.32 mi3.11 mi10713+1938496+1208496+12010387(Top 37%)8284(Top 51%)8284(Top 415%)
20K12.43 mi3.11 mi10521+1928382+1148382+1149996(Top 35%)8004(Top 50%)8004(Top 401%)
Half13.11 mi0.68 mi10448+738336+468336+469300(Top 33%)7643(Top 47%)7643(Top 383%)
25K15.53 mi2.42 mi10221+2278181+1558181+1559280(Top 33%)7490(Top 47%)7490(Top 375%)
30K18.64 mi3.11 mi9796+4257901+2807901+2808412(Top 30%)6830(Top 42%)6830(Top 342%)
20M20.00 mi1.36 mi9583+2137750+1517750+1517713(Top 27%)6269(Top 39%)6269(Top 314%)
21M21.00 mi1.00 mi9487+967664+867664+868458(Top 30%)6518(Top 40%)6518(Top 327%)
35K21.75 mi0.75 mi9399+887599+657599+658193(Top 29%)6416(Top 40%)6416(Top 321%)
23M23.00 mi1.25 mi9188+2117444+1557444+1556906(Top 24%)5540(Top 34%)5540(Top 278%)
24M24.00 mi1.00 mi9097+917360+847360+847928(Top 28%)6072(Top 38%)6072(Top 304%)
40K24.85 mi0.85 mi9018+797279+817279+817943(Top 28%)5963(Top 37%)5963(Top 299%)
25.2M25.20 mi0.35 mi9021-37262+177262+179932(Top 35%)6908(Top 43%)6908(Top 346%)
Finish26.22 mi1.02 mi8941+807174+887174+888060(Top 28%)5945(Top 37%)5945(Top 298%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

10387

Males

8284

M50-54

8284

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10773

Males

8543

M50-54

8543

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

10387

Males

8284

M50-54

8284

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

9996

Males

8004

M50-54

8004

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

9300

Males

7643

M50-54

7643

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

9280

Males

7490

M50-54

7490

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8412

Males

6830

M50-54

6830

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7713

Males

6269

M50-54

6269

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

8458

Males

6518

M50-54

6518

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

8193

Males

6416

M50-54

6416

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6906

Males

5540

M50-54

5540

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

7928

Males

6072

M50-54

6072

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7943

Males

5963

M50-54

5963

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9932

Males

6908

M50-54

6908

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

8060

Males

5945

M50-54

5945

Passing Analysis

Category:
Athletes Passed
2796*
Passed By
651
Net Change
+2145
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11086
5K → 10K348168+180#11086#10906
10K → 15K26774+193#10906#10713
15K → 20K26775+192#10713#10521
20K → Half818+73#10521#10448
Half → 25K26942+227#10448#10221
25K → 30K464*39+425#10221#9796
30K → 20M22916+213#9796#9583
20M → 21M14448+96#9583#9487
21M → 35K979+88#9487#9399
35K → 23M22615+211#9399#9188
23M → 24M12332+91#9188#9097
24M → 40K12546+79#9097#9018
40K → 25.2M4043-3#9018#9021
25.2M → Finish11636+80#9021#8941
TOTALS2796*651+2145

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

📊

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