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BOSTON MARATHON 2025

Jason Dubovsky

Bib: 8581•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 42%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 44%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:28/mi
23:13
↑ 97↓ 3451.5%
10K· 6.21 mi
7:25/mi
46:17
↑ 79↓ 1380.4%
15K· 9.32 mi
7:29/mi
1:09:32
↑ 67↓ 78
20K· 12.43 mi
7:37/mi
1:33:12
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:38:24
↑ 19↓ 370.5%
25K· 15.53 mi
7:42/mi
1:57:04
↑ 66↓ 880.2%
30K· 18.64 mi
7:58/mi
2:21:49
↑ 181↓ 1480.2%
20M
8:15/mi
2:33:02
↑ 64↓ 500.2%
21M
8:40/mi
2:41:42
↑ 106↓ 241.6%
35K· 21.75 mi
8:16/mi
2:47:53
↑ 17↓ 861.7%
23M
8:22/mi
2:58:21
↑ 23↓ 630.6%
24M
8:22/mi
3:06:43
↓ 821.3%
40K· 24.85 mi
8:28/mi
3:13:57
↓ 200.3%
25.2M
9:02/mi
3:17:04
↑ 13↓ 160.2%
Finish· 26.22 mi
8:07/mi
3:25:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:24
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:46:56
Pace8:09 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:3523:137:2823:13
7:28
-
10K
6.21 mi11:11:3946:177:2723:04
7:25
-0:03
15K
9.32 mi11:34:541:09:327:2823:15
7:29
+0:04
20K
12.43 mi11:58:341:33:127:3023:40
7:37
+0:08
Half
13.11 mi12:03:461:38:247:305:12
7:37
0:00
25K
15.53 mi12:22:261:57:047:3218:40
7:42
+0:05
30K
18.64 mi12:47:112:21:497:3624:45
7:58
+0:16
20M
20.00 mi12:58:242:33:027:3911:13
8:15
+0:17
21M
21.00 mi13:07:042:41:427:428:40
8:40
+0:25
35K
21.75 mi13:13:152:47:537:436:11
8:16
-0:24
23M
23.00 mi13:23:432:58:217:4510:28
8:22
+0:06
24M
24.00 mi13:32:053:06:437:478:22
8:22
0:00
40K
24.85 mi13:39:193:13:577:487:14
8:28
+0:06
25.2M
25.20 mi13:42:263:17:047:493:07
9:02
+0:34
Finish
26.22 mi13:50:423:25:207:508:16
8:07
-0:55

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

7:25 /mi

Average Pace

7:50 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:04

57% of race

Time at Steady Pace

50:25

25% of race

Time at Slower Pace

37:51

18% of race

Average Pace: 7:50 /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 mi10:48:3523:137:2823:13
7:28
#12004
10K
6.21 mi11:11:3946:177:2723:04
7:25
#11680
15K
9.32 mi11:34:541:09:327:2823:15
7:29
#11621
20K
12.43 mi11:58:341:33:127:3023:40
7:37
#11622
Half
13.11 mi12:03:461:38:247:305:12
7:37
#11695
25K
15.53 mi12:22:261:57:047:3218:40
7:42
#11646
30K
18.64 mi12:47:112:21:497:3624:45
7:58
#11483
20M
20.00 mi12:58:242:33:027:3911:13
8:15
#11479
21M
21.00 mi13:07:042:41:427:428:40
8:40
#11463
35K
21.75 mi13:13:152:47:537:436:11
8:16
#11573
23M
23.00 mi13:23:432:58:217:4510:28
8:22
#11595
24M
24.00 mi13:32:053:06:437:478:22
8:22
#11672
40K
24.85 mi13:39:193:13:577:487:14
8:28
#11712
25.2M
25.20 mi13:42:263:17:047:493:07
9:02
#11721
Finish
26.22 mi13:50:423:25:207:508:16
8:07
#11789
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi120049171917111611(Top 41%)8887(Top 55%)8887(Top 396%)
10K6.21 mi3.10 mi11680+3249012+1599012+15911395(Top 40%)8852(Top 55%)8852(Top 394%)
15K9.32 mi3.11 mi11621+598957+558957+5511611(Top 41%)8887(Top 55%)8887(Top 396%)
20K12.43 mi3.11 mi11622-18917+408917+4011719(Top 41%)8840(Top 55%)8840(Top 393%)
Half13.11 mi0.68 mi11695-738949-328949-3212681(Top 45%)9304(Top 58%)9304(Top 414%)
25K15.53 mi2.42 mi11646+498888+618888+6111518(Top 41%)8628(Top 54%)8628(Top 384%)
30K18.64 mi3.11 mi11483+1638731+1578731+15711138(Top 39%)8253(Top 51%)8253(Top 367%)
20M20.00 mi1.36 mi11479+48683+488683+4812144(Top 43%)8586(Top 53%)8586(Top 382%)
21M21.00 mi1.00 mi11463+168639+448639+4411460(Top 40%)8104(Top 50%)8104(Top 361%)
35K21.75 mi0.75 mi11573-1108671-328671-3213989(Top 49%)9274(Top 58%)9274(Top 413%)
23M23.00 mi1.25 mi11595-228636+358636+3512400(Top 44%)8417(Top 52%)8417(Top 375%)
24M24.00 mi1.00 mi11672-778636863613626(Top 48%)8953(Top 56%)8953(Top 398%)
40K24.85 mi0.85 mi11712-408630+68630+613153(Top 46%)8592(Top 53%)8592(Top 382%)
25.2M25.20 mi0.35 mi11721-98620+108620+1011959(Top 42%)7970(Top 49%)7970(Top 355%)
Finish26.22 mi1.02 mi11789-688612+88612+813639(Top 48%)8828(Top 55%)8828(Top 393%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11611

Males

8887

M40-44

8887

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

11395

Males

8852

M40-44

8852

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11611

Males

8887

M40-44

8887

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11719

Males

8840

M40-44

8840

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12681

Males

9304

M40-44

9304

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

11518

Males

8628

M40-44

8628

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

11138

Males

8253

M40-44

8253

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

12144

Males

8586

M40-44

8586

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

11460

Males

8104

M40-44

8104

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

13989

Males

9274

M40-44

9274

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

12400

Males

8417

M40-44

8417

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

13626

Males

8953

M40-44

8953

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

13153

Males

8592

M40-44

8592

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11959

Males

7970

M40-44

7970

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

13639

Males

8828

M40-44

8828

Passing Analysis

Category:
Athletes Passed
1922
Passed By
1707
Net Change
+215
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12004
5K → 10K453129+324#12004#11680
10K → 15K213154+59#11680#11621
15K → 20K175176-1#11621#11622
20K → Half1386-73#11622#11695
Half → 25K182133+49#11695#11646
25K → 30K300137+163#11646#11483
30K → 20M125121+4#11483#11479
20M → 21M10488+16#11479#11463
21M → 35K31141-110#11463#11573
35K → 23M103125-22#11573#11595
23M → 24M64141-77#11595#11672
24M → 40K67107-40#11672#11712
40K → 25.2M2938-9#11712#11721
25.2M → Finish63131-68#11721#11789
TOTALS19221707+215
📊

Passing Visuals

Category:
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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