Boston Marathon logo
BOSTON MARATHON 2025

Jeff Tomaszewski

Bib: 1865•M

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 5%
Gender (Male)
#0 / 16105
Top 9%
Masters (Masters Men)
#0 / 10463
Top 2%
Division (M50-54)
#0 / 1996
Top 0.7%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:11
Rank: #1713
Start → 5K
19:11 | 6:10/mi
10K· 6.21 mi
38:15
Rank: #1656 (+57)
5K → 10K
19:04 | 6:08/mi
15K· 9.32 mi
57:10
Rank: #1550 (+106)
10K → 15K
18:55 | 6:05/mi
20K· 12.43 mi
1:16:14
Rank: #1468 (+82)
15K → 20K
19:04 | 6:08/mi
Half· 13.11 mi
1:20:21
Rank: #1457 (+11)
20K → Half
4:07 | 6:02/mi
25K· 15.53 mi
1:35:15
Rank: #1398 (+59)
Half → 25K
14:54 | 6:09/mi
30K· 18.64 mi
1:55:28
Rank: #1459 (-61)
25K → 30K
20:13 | 6:30/mi
20M
2:04:27
Rank: #1476 (-17)
30K → 20M
8:59 | 6:37/mi
21M
2:11:34
Rank: #1510 (-34)
20M → 21M
7:07 | 7:07/mi
35K· 21.75 mi
2:16:19
Rank: #1509 (+1)
21M → 35K
4:45 | 6:21/mi
23M
2:24:39
Rank: #1504 (+5)
35K → 23M
8:20 | 6:39/mi
24M
2:31:13
Rank: #1510 (-6)
23M → 24M
6:34 | 6:34/mi
40K· 24.85 mi
2:36:46
Rank: #1482 (+28)
24M → 40K
5:33 | 6:29/mi
25.2M
2:39:12
Rank: #1480 (+2)
40K → 25.2M
2:26 | 7:03/mi
Finish· 26.22 mi
2:45:44
Rank: #1492 (-12)
25.2M → Finish
6:32 | 6:25/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
Time1:20:21
Pace6:08 /mi
2nd Half
Distance13.11 mi
Time1:25:23
Pace6:31 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:4819:116:1019:11
6:10
-
10K
6.21 mi10:38:5238:156:0919:04
6:08
-0:02
15K
9.32 mi10:57:4757:106:0818:55
6:05
-0:03
20K
12.43 mi11:16:511:16:146:0819:04
6:08
+0:03
Half
13.11 mi11:20:581:20:216:084:07
6:02
-0:06
25K
15.53 mi11:35:521:35:156:0814:54
6:09
+0:07
30K
18.64 mi11:56:051:55:286:1220:13
6:30
+0:21
20M
20.00 mi12:05:042:04:276:138:59
6:37
+0:07
21M
21.00 mi12:12:112:11:346:167:07
7:07
+0:30
35K
21.75 mi12:16:562:16:196:164:45
6:21
-0:46
23M
23.00 mi12:25:162:24:396:178:20
6:39
+0:18
24M
24.00 mi12:31:502:31:136:186:34
6:34
-0:05
40K
24.85 mi12:37:232:36:466:185:33
6:29
-0:05
25.2M
25.20 mi12:39:492:39:126:192:26
7:03
+0:34
Finish
26.22 mi12:46:212:45:446:206:32
6:25
-0:38

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

6:02 /mi

Average Pace

6:20 /mi

Slowest Pace

7:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:51

89% of race

Time at Steady Pace

17:53

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:19 /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 mi10:19:4819:116:1019:11
6:10
#1713
10K
6.21 mi10:38:5238:156:0919:04
6:08
#1656
15K
9.32 mi10:57:4757:106:0818:55
6:05
#1550
20K
12.43 mi11:16:511:16:146:0819:04
6:08
#1468
Half
13.11 mi11:20:581:20:216:084:07
6:02
#1457
25K
15.53 mi11:35:521:35:156:0814:54
6:09
#1398
30K
18.64 mi11:56:051:55:286:1220:13
6:30
#1459
20M
20.00 mi12:05:042:04:276:138:59
6:37
#1476
21M
21.00 mi12:12:112:11:346:167:07
7:07
#1510
35K
21.75 mi12:16:562:16:196:164:45
6:21
#1509
23M
23.00 mi12:25:162:24:396:178:20
6:39
#1504
24M
24.00 mi12:31:502:31:136:186:34
6:34
#1510
40K
24.85 mi12:37:232:36:466:185:33
6:29
#1482
25.2M
25.20 mi12:39:492:39:126:192:26
7:03
#1480
Finish
26.22 mi12:46:212:45:446:206:32
6:25
#1492
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi1713162716271327(Top 5%)1260(Top 8%)1260(Top 63%)
10K6.21 mi3.10 mi1656+571576+511576+511612(Top 6%)1534(Top 10%)1534(Top 77%)
15K9.32 mi3.11 mi1550+1061474+1021474+1021327(Top 5%)1260(Top 8%)1260(Top 63%)
20K12.43 mi3.11 mi1468+821393+811393+811311(Top 5%)1241(Top 8%)1241(Top 62%)
Half13.11 mi0.68 mi1457+111382+111382+111287(Top 5%)1221(Top 8%)1221(Top 61%)
25K15.53 mi2.42 mi1398+591326+561326+561267(Top 4%)1200(Top 7%)1200(Top 60%)
30K18.64 mi3.11 mi1459-611379-531379-532007(Top 7%)1907(Top 12%)1907(Top 96%)
20M20.00 mi1.36 mi1476-171396-171396-172049(Top 7%)1938(Top 12%)1938(Top 97%)
21M21.00 mi1.00 mi1510-341429-331429-332718(Top 10%)2521(Top 16%)2521(Top 126%)
35K21.75 mi0.75 mi1509+11427+21427+21782(Top 6%)1671(Top 10%)1671(Top 84%)
23M23.00 mi1.25 mi1504+51423+41423+42046(Top 7%)1911(Top 12%)1911(Top 96%)
24M24.00 mi1.00 mi1510-61429-61429-62306(Top 8%)2131(Top 13%)2131(Top 107%)
40K24.85 mi0.85 mi1482+281400+291400+291556(Top 5%)1440(Top 9%)1440(Top 72%)
25.2M25.20 mi0.35 mi1480+21397+31397+31623(Top 6%)1480(Top 9%)1480(Top 74%)
Finish26.22 mi1.02 mi1492-121409-121409-122339(Top 8%)2131(Top 13%)2131(Top 107%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1327

Males

1260

M50-54

1260

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1612

Males

1534

M50-54

1534

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1327

Males

1260

M50-54

1260

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1311

Males

1241

M50-54

1241

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1287

Males

1221

M50-54

1221

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1267

Males

1200

M50-54

1200

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

2007

Males

1907

M50-54

1907

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

2049

Males

1938

M50-54

1938

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2718

Males

2521

M50-54

2521

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1782

Males

1671

M50-54

1671

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

2046

Males

1911

M50-54

1911

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2306

Males

2131

M50-54

2131

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1556

Males

1440

M50-54

1440

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1623

Males

1480

M50-54

1480

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2339

Males

2131

M50-54

2131

Passing Analysis

Category:
Athletes Passed
661
Passed By
440
Net Change
+221
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1713
5K → 10K11053+57#1713#1656
10K → 15K11913+106#1656#1550
15K → 20K9816+82#1550#1468
20K → Half154+11#1468#1457
Half → 25K7011+59#1457#1398
25K → 30K3899-61#1398#1459
30K → 20M2845-17#1459#1476
20M → 21M1751-34#1476#1510
21M → 35K2524+1#1510#1509
35K → 23M4237+5#1509#1504
23M → 24M2430-6#1504#1510
24M → 40K4012+28#1510#1482
40K → 25.2M108+2#1482#1480
25.2M → Finish2537-12#1480#1492
TOTALS661440+221
📊

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