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BOSTON MARATHON 2025

Jason Mason

Bib: 6465•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 32%
Gender (Male)
#0 / 16105
Top 45%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:09
Rank: #8873
Start → 5K
22:09 | 7:08/mi
10K· 6.21 mi
44:28
Rank: #9085 (-212)
5K → 10K
22:19 | 7:11/mi
15K· 9.32 mi
1:07:19
Rank: #9512 (-427)
10K → 15K
22:51 | 7:21/mi
20K· 12.43 mi
1:30:43
Rank: #9874 (-362)
15K → 20K
23:24 | 7:32/mi
Half· 13.11 mi
1:35:46
Rank: #9920 (-46)
20K → Half
5:03 | 7:24/mi
25K· 15.53 mi
1:53:58
Rank: #9876 (+44)
Half → 25K
18:12 | 7:30/mi
30K· 18.64 mi
2:18:04
Rank: #9757 (+119)
25K → 30K
24:06 | 7:45/mi
20M
2:28:30
Rank: #9588 (+169)
30K → 20M
10:26 | 7:41/mi
21M
2:36:31
Rank: #9432 (+156)
20M → 21M
8:01 | 8:01/mi
35K· 21.75 mi
2:42:06
Rank: #9362 (+70)
21M → 35K
5:35 | 7:28/mi
23M
2:51:47
Rank: #9221 (+141)
35K → 23M
9:41 | 7:44/mi
24M
2:59:21
Rank: #9149 (+72)
23M → 24M
7:34 | 7:34/mi
40K· 24.85 mi
3:06:00
Rank: #9097 (+52)
24M → 40K
6:39 | 7:47/mi
25.2M
3:08:53
Rank: #9059 (+38)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:16:32
Rank: #9034 (+25)
25.2M → Finish
7:39 | 7:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:46
Pace7:18 /mi
2nd Half
Distance13.11 mi
Time1:40:46
Pace7:41 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:5122:097:0822:09
7:08
-
10K
6.21 mi10:51:1044:287:0922:19
7:11
+0:03
15K
9.32 mi11:14:011:07:197:1322:51
7:21
+0:10
20K
12.43 mi11:37:251:30:437:1823:24
7:32
+0:11
Half
13.11 mi11:42:281:35:467:185:03
7:24
-0:08
25K
15.53 mi12:00:401:53:587:2018:12
7:30
+0:06
30K
18.64 mi12:24:462:18:047:2424:06
7:45
+0:15
20M
20.00 mi12:35:122:28:307:2510:26
7:41
-0:04
21M
21.00 mi12:43:132:36:317:278:01
8:01
+0:20
35K
21.75 mi12:48:482:42:067:275:35
7:28
-0:33
23M
23.00 mi12:58:292:51:477:289:41
7:44
+0:16
24M
24.00 mi13:06:032:59:217:287:34
7:34
-0:10
40K
24.85 mi13:12:423:06:007:296:39
7:47
+0:13
25.2M
25.20 mi13:15:353:08:537:302:53
8:22
+0:35
Finish
26.22 mi13:23:143:16:327:307:39
7:30
-0:52

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

7:08 /mi

Average Pace

7:30 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:38

94% of race

Time at Steady Pace

10:54

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:30 /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 mi10:28:5122:097:0822:09
7:08
#8873
10K
6.21 mi10:51:1044:287:0922:19
7:11
#9085
15K
9.32 mi11:14:011:07:197:1322:51
7:21
#9512
20K
12.43 mi11:37:251:30:437:1823:24
7:32
#9874
Half
13.11 mi11:42:281:35:467:185:03
7:24
#9920
25K
15.53 mi12:00:401:53:587:2018:12
7:30
#9876
30K
18.64 mi12:24:462:18:047:2424:06
7:45
#9757
20M
20.00 mi12:35:122:28:307:2510:26
7:41
#9588
21M
21.00 mi12:43:132:36:317:278:01
8:01
#9432
35K
21.75 mi12:48:482:42:067:275:35
7:28
#9362
23M
23.00 mi12:58:292:51:477:289:41
7:44
#9221
24M
24.00 mi13:06:032:59:217:287:34
7:34
#9149
40K
24.85 mi13:12:423:06:007:296:39
7:47
#9097
25.2M
25.20 mi13:15:353:08:537:302:53
8:22
#9059
Finish
26.22 mi13:23:143:16:327:307:39
7:30
#9034
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi88737532753210432(Top 37%)8314(Top 52%)8314(Top 147%)
10K6.21 mi3.10 mi9085-2127652-1207652-1209331(Top 33%)7785(Top 48%)7785(Top 138%)
15K9.32 mi3.11 mi9512-4277882-2307882-23010432(Top 37%)8314(Top 52%)8314(Top 147%)
20K12.43 mi3.11 mi9874-3628037-1558037-15511015(Top 39%)8500(Top 53%)8500(Top 151%)
Half13.11 mi0.68 mi9920-468063-268063-2610793(Top 38%)8418(Top 52%)8418(Top 149%)
25K15.53 mi2.42 mi9876+447999+647999+649988(Top 35%)7859(Top 49%)7859(Top 139%)
30K18.64 mi3.11 mi9757+1197878+1217878+1219595(Top 34%)7471(Top 46%)7471(Top 132%)
20M20.00 mi1.36 mi9588+1697752+1267752+1268197(Top 29%)6565(Top 41%)6565(Top 116%)
21M21.00 mi1.00 mi9432+1567639+1137639+1137433(Top 26%)5936(Top 37%)5936(Top 105%)
35K21.75 mi0.75 mi9362+707576+637576+638347(Top 29%)6511(Top 40%)6511(Top 115%)
23M23.00 mi1.25 mi9221+1417457+1197457+1198096(Top 29%)6221(Top 39%)6221(Top 110%)
24M24.00 mi1.00 mi9149+727391+667391+668148(Top 29%)6206(Top 39%)6206(Top 110%)
40K24.85 mi0.85 mi9097+527330+617330+618593(Top 30%)6300(Top 39%)6300(Top 112%)
25.2M25.20 mi0.35 mi9059+387288+427288+427938(Top 28%)5879(Top 37%)5879(Top 104%)
Finish26.22 mi1.02 mi9034+257226+627226+629219(Top 32%)6564(Top 41%)6564(Top 116%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

10432

Males

8314

M18-39

8314

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

9331

Males

7785

M18-39

7785

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

10432

Males

8314

M18-39

8314

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

11015

Males

8500

M18-39

8500

20K→Half

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

10793

Males

8418

M18-39

8418

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9988

Males

7859

M18-39

7859

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9595

Males

7471

M18-39

7471

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

8197

Males

6565

M18-39

6565

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7433

Males

5936

M18-39

5936

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

8347

Males

6511

M18-39

6511

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

8096

Males

6221

M18-39

6221

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

8148

Males

6206

M18-39

6206

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8593

Males

6300

M18-39

6300

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7938

Males

5879

M18-39

5879

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

9219

Males

6564

M18-39

6564

Passing Analysis

Category:
Athletes Passed
1774
Passed By
1934
Net Change
-161
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8873
5K → 10K138350-212#8873#9085
10K → 15K54481-427#9085#9512
15K → 20K107468-362#9512#9874
20K → Half1359-46#9874#9920
Half → 25K172128+44#9920#9876
25K → 30K274155+119#9876#9757
30K → 20M19627+169#9757#9588
20M → 21M18226+156#9588#9432
21M → 35K9424+70#9432#9362
35K → 23M17736+141#9362#9221
23M → 24M11644+72#9221#9149
24M → 40K10452+52#9149#9097
40K → 25.2M5416+38#9097#9059
25.2M → Finish9368+25#9059#9034
TOTALS17741934-161
📊

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