Boston Marathon logo
BOSTON MARATHON 2025

Tomasz Twardowski

Bib: 7002•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 24%
Gender (Male)
#0 / 16105
Top 37%
Masters (Masters Men)
#0 / 10463
Top 23%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:52
Rank: #5597
Start → 5K
20:52 | 6:43/mi
10K· 6.21 mi
42:04
Rank: #6018 (-421)
5K → 10K
21:12 | 6:49/mi
15K· 9.32 mi
1:03:10
Rank: #5973 (+45)
10K → 15K
21:06 | 6:47/mi
20K· 12.43 mi
1:24:14
Rank: #5748 (+225)
15K → 20K
21:04 | 6:47/mi
Half· 13.11 mi
1:28:44
Rank: #5666 (+82)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:45:08
Rank: #5442 (+224)
Half → 25K
16:24 | 6:46/mi
30K· 18.64 mi
2:07:43
Rank: #5601 (-159)
25K → 30K
22:35 | 7:16/mi
20M
2:18:05
Rank: #5773 (-172)
30K → 20M
10:22 | 7:38/mi
21M
2:26:47
Rank: #6018 (-245)
20M → 21M
8:42 | 8:42/mi
35K· 21.75 mi
2:32:16
Rank: #6046 (-28)
21M → 35K
5:29 | 7:20/mi
23M
2:42:19
Rank: #6157 (-111)
35K → 23M
10:03 | 8:02/mi
24M
2:50:11
Rank: #6259 (-102)
23M → 24M
7:52 | 7:52/mi
40K· 24.85 mi
2:57:31
Rank: #6442 (-183)
24M → 40K
7:20 | 8:35/mi
25.2M
3:00:48
Rank: #6553 (-111)
40K → 25.2M
3:17 | 9:31/mi
Finish· 26.22 mi
3:09:25
Rank: #6882 (-329)
25.2M → Finish
8:37 | 8:27/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
Time1:28:44
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:40:41
Pace7:41 /mi
📊Positive Split: 13.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:0420:526:4320:52
6:43
-
10K
6.21 mi10:48:1642:046:4621:12
6:49
+0:06
15K
9.32 mi11:09:221:03:106:4721:06
6:47
-0:02
20K
12.43 mi11:30:261:24:146:4721:04
6:47
0:00
Half
13.11 mi11:34:561:28:446:464:30
6:36
-0:11
25K
15.53 mi11:51:201:45:086:4616:24
6:46
+0:10
30K
18.64 mi12:13:552:07:436:5122:35
7:16
+0:30
20M
20.00 mi12:24:172:18:056:5410:22
7:38
+0:22
21M
21.00 mi12:32:592:26:476:598:42
8:42
+1:04
35K
21.75 mi12:38:282:32:167:005:29
7:20
-1:22
23M
23.00 mi12:48:312:42:197:0310:03
8:02
+0:42
24M
24.00 mi12:56:232:50:117:057:52
7:52
-0:10
40K
24.85 mi13:03:432:57:317:097:20
8:35
+0:43
25.2M
25.20 mi13:07:003:00:487:103:17
9:31
+0:56
Finish
26.22 mi13:15:373:09:257:148:37
8:27
-1:04

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

6:36 /mi

Average Pace

7:14 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:08

56% of race

Time at Steady Pace

38:26

20% of race

Time at Slower Pace

45:51

24% of race

Average Pace: 7:13 /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 mi10:27:0420:526:4320:52
6:43
#5597
10K
6.21 mi10:48:1642:046:4621:12
6:49
#6018
15K
9.32 mi11:09:221:03:106:4721:06
6:47
#5973
20K
12.43 mi11:30:261:24:146:4721:04
6:47
#5748
Half
13.11 mi11:34:561:28:446:464:30
6:36
#5666
25K
15.53 mi11:51:201:45:086:4616:24
6:46
#5442
30K
18.64 mi12:13:552:07:436:5122:35
7:16
#5601
20M
20.00 mi12:24:172:18:056:5410:22
7:38
#5773
21M
21.00 mi12:32:592:26:476:598:42
8:42
#6018
35K
21.75 mi12:38:282:32:167:005:29
7:20
#6046
23M
23.00 mi12:48:312:42:197:0310:03
8:02
#6157
24M
24.00 mi12:56:232:50:117:057:52
7:52
#6259
40K
24.85 mi13:03:432:57:317:097:20
8:35
#6442
25.2M
25.20 mi13:07:003:00:487:103:17
9:31
#6553
Finish
26.22 mi13:15:373:09:257:148:37
8:27
#6882
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5597518251826016(Top 21%)5470(Top 34%)5470(Top 243%)
10K6.21 mi3.10 mi6018-4215525-3435525-3436658(Top 23%)6013(Top 37%)6013(Top 268%)
15K9.32 mi3.11 mi5973+455476+495476+496016(Top 21%)5470(Top 34%)5470(Top 243%)
20K12.43 mi3.11 mi5748+2255277+1995277+1995123(Top 18%)4725(Top 29%)4725(Top 210%)
Half13.11 mi0.68 mi5666+825205+725205+724436(Top 16%)4158(Top 26%)4158(Top 185%)
25K15.53 mi2.42 mi5442+2245007+1985007+1984612(Top 16%)4257(Top 26%)4257(Top 189%)
30K18.64 mi3.11 mi5601-1595123-1165123-1166285(Top 22%)5514(Top 34%)5514(Top 245%)
20M20.00 mi1.36 mi5773-1725247-1245247-1247871(Top 28%)6358(Top 39%)6358(Top 283%)
21M21.00 mi1.00 mi6018-2455420-1735420-17311630(Top 41%)8180(Top 51%)8180(Top 364%)
35K21.75 mi0.75 mi6046-285428-85428-87397(Top 26%)5931(Top 37%)5931(Top 264%)
23M23.00 mi1.25 mi6157-1115500-725500-7210186(Top 36%)7319(Top 45%)7319(Top 326%)
24M24.00 mi1.00 mi6259-1025556-565556-5610286(Top 36%)7306(Top 45%)7306(Top 325%)
40K24.85 mi0.85 mi6442-1835661-1055661-10513875(Top 49%)8924(Top 55%)8924(Top 397%)
25.2M25.20 mi0.35 mi6553-1115722-615722-6114593(Top 51%)9186(Top 57%)9186(Top 409%)
Finish26.22 mi1.02 mi6882-3295915-1935915-19315889(Top 56%)9871(Top 61%)9871(Top 439%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

6016

Males

5470

M40-44

5470

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6658

Males

6013

M40-44

6013

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

6016

Males

5470

M40-44

5470

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5123

Males

4725

M40-44

4725

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4436

Males

4158

M40-44

4158

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4612

Males

4257

M40-44

4257

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

6285

Males

5514

M40-44

5514

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7871

Males

6358

M40-44

6358

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

11630

Males

8180

M40-44

8180

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

7397

Males

5931

M40-44

5931

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

10186

Males

7319

M40-44

7319

23M→24M

23.0 - 24.0 mi

Top 36%
×6stories
+12ft-82ft

Overall

10286

Males

7306

M40-44

7306

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13875

Males

8924

M40-44

8924

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14593

Males

9186

M40-44

9186

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

15889

Males

9871

M40-44

9871

Passing Analysis

Category:
Athletes Passed
1143
Passed By
2428
Net Change
-1285
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5597
5K → 10K61482-421#5597#6018
10K → 15K155110+45#6018#5973
15K → 20K26136+225#5973#5748
20K → Half831+82#5748#5666
Half → 25K24319+224#5666#5442
25K → 30K140299-159#5442#5601
30K → 20M26198-172#5601#5773
20M → 21M21266-245#5773#6018
21M → 35K3361-28#6018#6046
35K → 23M59170-111#6046#6157
23M → 24M27129-102#6157#6259
24M → 40K20203-183#6259#6442
40K → 25.2M5116-111#6442#6553
25.2M → Finish9338-329#6553#6882
TOTALS11432428-1285
📊

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