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BOSTON MARATHON 2025

Jason Mccaffrey

Bib: 12916•M

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 41%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 44%
Division (M50-54)
#0 / 1996
Top 47%
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
7:37/mi
23:40
↑ 97↓ 3451.5%
10K· 6.21 mi
7:31/mi
47:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:34/mi
1:10:31
↑ 67↓ 78
20K· 12.43 mi
7:55/mi
1:35:07
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:40:17
↑ 19↓ 370.5%
25K· 15.53 mi
7:48/mi
1:59:11
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:23:40
↑ 181↓ 1480.2%
20M
7:54/mi
2:34:24
↑ 64↓ 500.2%
21M
8:31/mi
2:42:55
↑ 106↓ 241.6%
35K· 21.75 mi
7:48/mi
2:48:45
↑ 17↓ 861.7%
23M
8:01/mi
2:58:47
↑ 23↓ 630.6%
24M
7:52/mi
3:06:39
↓ 821.3%
40K· 24.85 mi
8:07/mi
3:13:35
↓ 200.3%
25.2M
9:20/mi
3:16:48
↑ 13↓ 160.2%
Finish· 26.22 mi
8:13/mi
3:25:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:17
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:44:53
Pace8:00 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1723:407:3723:40
7:37
-
10K
6.21 mi11:15:3847:017:3423:21
7:31
-0:06
15K
9.32 mi11:39:081:10:317:3423:30
7:34
+0:03
20K
12.43 mi12:03:441:35:077:3924:36
7:55
+0:21
Half
13.11 mi12:08:541:40:177:395:10
7:34
-0:21
25K
15.53 mi12:27:481:59:117:4018:54
7:48
+0:14
30K
18.64 mi12:52:172:23:407:4224:29
7:53
+0:05
20M
20.00 mi13:03:012:34:247:4310:44
7:54
+0:01
21M
21.00 mi13:11:322:42:557:458:31
8:31
+0:37
35K
21.75 mi13:17:222:48:457:465:50
7:48
-0:43
23M
23.00 mi13:27:242:58:477:4610:02
8:01
+0:13
24M
24.00 mi13:35:163:06:397:477:52
7:52
-0:09
40K
24.85 mi13:42:123:13:357:476:56
8:07
+0:15
25.2M
25.20 mi13:45:253:16:487:493:13
9:20
+1:13
Finish
26.22 mi13:53:473:25:107:508:22
8:13
-1:07

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

7:31 /mi

Average Pace

7:50 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:41

37% of race

Time at Steady Pace

1:42:27

50% of race

Time at Slower Pace

27:02

13% of race

Average Pace: 7:49 /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 mi10:52:1723:407:3723:40
7:37
#13261
10K
6.21 mi11:15:3847:017:3423:21
7:31
#12705
15K
9.32 mi11:39:081:10:317:3423:30
7:34
#12553
20K
12.43 mi12:03:441:35:077:3924:36
7:55
#12953
Half
13.11 mi12:08:541:40:177:395:10
7:34
#12902
25K
15.53 mi12:27:481:59:117:4018:54
7:48
#12775
30K
18.64 mi12:52:172:23:407:4224:29
7:53
#12325
20M
20.00 mi13:03:012:34:247:4310:44
7:54
#12075
21M
21.00 mi13:11:322:42:557:458:31
8:31
#11944
35K
21.75 mi13:17:222:48:457:465:50
7:48
#11880
23M
23.00 mi13:27:242:58:477:4610:02
8:01
#11747
24M
24.00 mi13:35:163:06:397:477:52
7:52
#11649
40K
24.85 mi13:42:123:13:357:476:56
8:07
#11591
25.2M
25.20 mi13:45:253:16:487:493:13
9:20
#11625
Finish
26.22 mi13:53:473:25:107:508:22
8:13
#11730
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi132619750975012283(Top 43%)9191(Top 57%)9191(Top 460%)
10K6.21 mi3.10 mi12705+5569487+2639487+26312237(Top 43%)9252(Top 57%)9252(Top 464%)
15K9.32 mi3.11 mi12553+1529384+1039384+10312283(Top 43%)9191(Top 57%)9191(Top 460%)
20K12.43 mi3.11 mi12953-4009498-1149498-11414228(Top 50%)9970(Top 62%)9970(Top 499%)
Half13.11 mi0.68 mi12902+519469+299469+2912280(Top 43%)9135(Top 57%)9135(Top 458%)
25K15.53 mi2.42 mi12775+1279390+799390+7912278(Top 43%)8977(Top 56%)8977(Top 450%)
30K18.64 mi3.11 mi12325+4509124+2669124+26610496(Top 37%)7932(Top 49%)7932(Top 397%)
20M20.00 mi1.36 mi12075+2508974+1508974+1509717(Top 34%)7388(Top 46%)7388(Top 370%)
21M21.00 mi1.00 mi11944+1318872+1028872+10210566(Top 37%)7655(Top 48%)7655(Top 384%)
35K21.75 mi0.75 mi11880+648819+538819+5310781(Top 38%)7763(Top 48%)7763(Top 389%)
23M23.00 mi1.25 mi11747+1338714+1058714+10510107(Top 36%)7292(Top 45%)7292(Top 365%)
24M24.00 mi1.00 mi11649+988621+938621+9310317(Top 36%)7337(Top 46%)7337(Top 368%)
40K24.85 mi0.85 mi11591+588569+528569+5210925(Top 38%)7535(Top 47%)7535(Top 378%)
25.2M25.20 mi0.35 mi11625-348574-58574-513537(Top 48%)8707(Top 54%)8707(Top 436%)
Finish26.22 mi1.02 mi11730-1058579-58579-514302(Top 50%)9156(Top 57%)9156(Top 459%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

12283

Males

9191

M50-54

9191

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

12237

Males

9252

M50-54

9252

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

12283

Males

9191

M50-54

9191

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

14228

Males

9970

M50-54

9970

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

12280

Males

9135

M50-54

9135

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

12278

Males

8977

M50-54

8977

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

10496

Males

7932

M50-54

7932

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9717

Males

7388

M50-54

7388

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

10566

Males

7655

M50-54

7655

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10781

Males

7763

M50-54

7763

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

10107

Males

7292

M50-54

7292

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

10317

Males

7337

M50-54

7337

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10925

Males

7535

M50-54

7535

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13537

Males

8707

M50-54

8707

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

14302

Males

9156

M50-54

9156

Passing Analysis

Category:
Athletes Passed
2808
Passed By
1277
Net Change
+1531
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13261
5K → 10K65094+556#13261#12705
10K → 15K276124+152#12705#12553
15K → 20K103503-400#12553#12953
20K → Half576+51#12953#12902
Half → 25K21285+127#12902#12775
25K → 30K49141+450#12775#12325
30K → 20M26818+250#12325#12075
20M → 21M16635+131#12075#11944
21M → 35K9026+64#11944#11880
35K → 23M17542+133#11880#11747
23M → 24M13234+98#11747#11649
24M → 40K10648+58#11649#11591
40K → 25.2M2357-34#11591#11625
25.2M → Finish59164-105#11625#11730
TOTALS28081277+1531
📊

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