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BOSTON MARATHON 2025

Jason Griffith

Bib: 14203•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
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
8:39/mi
26:53
↑ 97↓ 3451.5%
10K· 6.21 mi
8:47/mi
54:09
↑ 79↓ 1380.4%
15K· 9.32 mi
8:43/mi
1:21:13
↑ 67↓ 78
20K· 12.43 mi
8:39/mi
1:48:06
↑ 106↓ 860.1%
Half· 13.11 mi
8:37/mi
1:53:59
↑ 19↓ 370.5%
25K· 15.53 mi
8:40/mi
2:15:00
↑ 66↓ 880.2%
30K· 18.64 mi
8:56/mi
2:42:44
↑ 181↓ 1480.2%
20M
8:45/mi
2:54:37
↑ 64↓ 500.2%
21M
9:17/mi
3:03:54
↑ 106↓ 241.6%
35K· 21.75 mi
8:19/mi
3:10:07
↑ 17↓ 861.7%
23M
8:30/mi
3:20:46
↑ 23↓ 630.6%
24M
8:03/mi
3:28:49
↓ 821.3%
40K· 24.85 mi
7:51/mi
3:35:32
↓ 200.3%
25.2M
7:58/mi
3:38:17
↑ 13↓ 160.2%
Finish· 26.22 mi
7:08/mi
3:45:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:53:59
Pace8:42 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:51:34
Pace8:31 /mi
📊Negative Split: 2.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:0126:538:3926:53
8:39
-
10K
6.21 mi11:25:1754:098:4327:16
8:47
+0:08
15K
9.32 mi11:52:211:21:138:4327:04
8:43
-0:04
20K
12.43 mi12:19:141:48:068:4226:53
8:39
-0:04
Half
13.11 mi12:25:071:53:598:425:53
8:37
-0:02
25K
15.53 mi12:46:082:15:008:4121:01
8:40
+0:03
30K
18.64 mi13:13:522:42:448:4427:44
8:56
+0:16
20M
20.00 mi13:25:452:54:378:4411:53
8:45
-0:11
21M
21.00 mi13:35:023:03:548:459:17
9:17
+0:32
35K
21.75 mi13:41:153:10:078:456:13
8:19
-0:58
23M
23.00 mi13:51:543:20:468:4410:39
8:30
+0:11
24M
24.00 mi13:59:573:28:498:428:03
8:03
-0:27
40K
24.85 mi14:06:403:35:328:406:43
7:51
-0:12
25.2M
25.20 mi14:09:253:38:178:402:45
7:58
+0:07
Finish
26.22 mi14:16:413:45:338:377:16
7:08
-0:50

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

8:37 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

31:00

14% of race

Time at Steady Pace

2:37:32

70% of race

Time at Slower Pace

37:01

16% of race

Average Pace: 8:36 /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 mi10:58:0126:538:3926:53
8:39
#20752
10K
6.21 mi11:25:1754:098:4327:16
8:47
#20973
15K
9.32 mi11:52:211:21:138:4327:04
8:43
#20820
20K
12.43 mi12:19:141:48:068:4226:53
8:39
#20404
Half
13.11 mi12:25:071:53:598:425:53
8:37
#20375
25K
15.53 mi12:46:082:15:008:4121:01
8:40
#20000
30K
18.64 mi13:13:522:42:448:4427:44
8:56
#19490
20M
20.00 mi13:25:452:54:378:4411:53
8:45
#19170
21M
21.00 mi13:35:023:03:548:459:17
9:17
#18941
35K
21.75 mi13:41:153:10:078:456:13
8:19
#18784
23M
23.00 mi13:51:543:20:468:4410:39
8:30
#18447
24M
24.00 mi13:59:573:28:498:428:03
8:03
#18157
40K
24.85 mi14:06:403:35:328:406:43
7:51
#17832
25.2M
25.20 mi14:09:253:38:178:402:45
7:58
#17633
Finish
26.22 mi14:16:413:45:338:377:16
7:08
#17277
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi20752127481274820546(Top 72%)12748(Top 79%)12748(Top 639%)
10K6.21 mi3.10 mi20973-22112874-12612874-12621273(Top 75%)13026(Top 81%)13026(Top 653%)
15K9.32 mi3.11 mi20820+15312823+5112823+5120546(Top 72%)12748(Top 79%)12748(Top 639%)
20K12.43 mi3.11 mi20404+41612642+18112642+18119149(Top 67%)12100(Top 75%)12100(Top 606%)
Half13.11 mi0.68 mi20375+2912628+1412628+1419880(Top 70%)12407(Top 77%)12407(Top 622%)
25K15.53 mi2.42 mi20000+37512461+16712461+16718180(Top 64%)11603(Top 72%)11603(Top 581%)
30K18.64 mi3.11 mi19490+51012201+26012201+26017284(Top 61%)11058(Top 69%)11058(Top 554%)
20M20.00 mi1.36 mi19170+32012040+16112040+16115338(Top 54%)10074(Top 63%)10074(Top 505%)
21M21.00 mi1.00 mi18941+22911915+12511915+12515060(Top 53%)9820(Top 61%)9820(Top 492%)
35K21.75 mi0.75 mi18784+15711831+8411831+8414296(Top 50%)9426(Top 59%)9426(Top 472%)
23M23.00 mi1.25 mi18447+33711663+16811663+16813350(Top 47%)8867(Top 55%)8867(Top 444%)
24M24.00 mi1.00 mi18157+29011504+15911504+15911592(Top 41%)7956(Top 49%)7956(Top 399%)
40K24.85 mi0.85 mi17832+32511329+17511329+1759182(Top 32%)6629(Top 41%)6629(Top 332%)
25.2M25.20 mi0.35 mi17633+19911223+10611223+1065830(Top 21%)4655(Top 29%)4655(Top 233%)
Finish26.22 mi1.02 mi17277+35611055+16811055+1686581(Top 23%)5093(Top 32%)5093(Top 255%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

20546

Males

12748

M50-54

12748

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

21273

Males

13026

M50-54

13026

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

20546

Males

12748

M50-54

12748

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

19149

Males

12100

M50-54

12100

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

19880

Males

12407

M50-54

12407

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18180

Males

11603

M50-54

11603

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

17284

Males

11058

M50-54

11058

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

15338

Males

10074

M50-54

10074

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

15060

Males

9820

M50-54

9820

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

14296

Males

9426

M50-54

9426

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

13350

Males

8867

M50-54

8867

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11592

Males

7956

M50-54

7956

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9182

Males

6629

M50-54

6629

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5830

Males

4655

M50-54

4655

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6581

Males

5093

M50-54

5093

Passing Analysis

Category:
Athletes Passed
4092
Passed By
617
Net Change
+3475
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20752
5K → 10K176397-221#20752#20973
10K → 15K268115+153#20973#20820
15K → 20K44428+416#20820#20404
20K → Half4819+29#20404#20375
Half → 25K39015+375#20375#20000
25K → 30K53727+510#20000#19490
30K → 20M3200+320#19490#19170
20M → 21M24112+229#19170#18941
21M → 35K1581+157#18941#18784
35K → 23M3392+337#18784#18447
23M → 24M2911+290#18447#18157
24M → 40K3250+325#18157#17832
40K → 25.2M1990+199#17832#17633
25.2M → Finish3560+356#17633#17277
TOTALS4092617+3475
📊

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