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BOSTON MARATHON 2025

Zach Griffin

Bib: 21144•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 (M60-64)
#0 / 1259
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:56
Rank: #26254
Start → 5K
31:56 | 10:17/mi
10K· 6.21 mi
1:03:05
Rank: #25779 (+475)
5K → 10K
31:09 | 10:02/mi
15K· 9.32 mi
1:34:07
Rank: #25519 (+260)
10K → 15K
31:02 | 9:59/mi
20K· 12.43 mi
2:06:12
Rank: #25347 (+172)
15K → 20K
32:05 | 10:20/mi
Half· 13.11 mi
2:12:59
Rank: #25302 (+45)
20K → Half
6:47 | 9:57/mi
25K· 15.53 mi
2:37:52
Rank: #25050 (+252)
Half → 25K
24:53 | 10:16/mi
30K· 18.64 mi
3:09:50
Rank: #24630 (+420)
25K → 30K
31:58 | 10:17/mi
20M
3:23:42
Rank: #24460 (+170)
30K → 20M
13:52 | 10:12/mi
21M
3:34:11
Rank: #24224 (+236)
20M → 21M
10:29 | 10:29/mi
35K· 21.75 mi
3:41:37
Rank: #24141 (+83)
21M → 35K
7:26 | 9:56/mi
23M
3:54:33
Rank: #23991 (+150)
35K → 23M
12:56 | 10:20/mi
24M
4:04:47
Rank: #23911 (+80)
23M → 24M
10:14 | 10:14/mi
40K· 24.85 mi
4:13:38
Rank: #23825 (+86)
24M → 40K
8:51 | 10:21/mi
25.2M
4:17:26
Rank: #23780 (+45)
40K → 25.2M
3:48 | 11:01/mi
Finish· 26.22 mi
4:27:38
Rank: #23775 (+5)
25.2M → Finish
10:12 | 10:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:12:59
Pace10:09 /mi
2nd Half
Distance13.11 mi
Time2:14:39
Pace10:16 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:1631:5610:1731:56
10:17
-
10K
6.21 mi12:29:251:03:0510:0931:09
10:02
-0:15
15K
9.32 mi13:00:271:34:0710:0631:02
9:59
-0:03
20K
12.43 mi13:32:322:06:1210:0932:05
10:20
+0:21
Half
13.11 mi13:39:192:12:5910:096:47
9:57
-0:23
25K
15.53 mi14:04:122:37:5210:1024:53
10:16
+0:19
30K
18.64 mi14:36:103:09:5010:1131:58
10:17
+0:01
20M
20.00 mi14:50:023:23:4210:1113:52
10:12
-0:05
21M
21.00 mi15:00:313:34:1110:1210:29
10:29
+0:17
35K
21.75 mi15:07:573:41:3710:117:26
9:56
-0:33
23M
23.00 mi15:20:533:54:3310:1212:56
10:20
+0:24
24M
24.00 mi15:31:074:04:4710:1210:14
10:14
-0:06
40K
24.85 mi15:39:584:13:3810:128:51
10:21
+0:07
25.2M
25.20 mi15:43:464:17:2610:133:48
11:01
+0:40
Finish
26.22 mi15:53:584:27:3810:1310:12
10:01
-1:00

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

9:56 /mi

Average Pace

10:13 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:23:50

99% of race

Time at Steady Pace

3:48

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:12 /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 mi11:58:1631:5610:1731:56
10:17
#26254
10K
6.21 mi12:29:251:03:0510:0931:09
10:02
#25779
15K
9.32 mi13:00:271:34:0710:0631:02
9:59
#25519
20K
12.43 mi13:32:322:06:1210:0932:05
10:20
#25347
Half
13.11 mi13:39:192:12:5910:096:47
9:57
#25302
25K
15.53 mi14:04:122:37:5210:1024:53
10:16
#25050
30K
18.64 mi14:36:103:09:5010:1131:58
10:17
#24630
20M
20.00 mi14:50:023:23:4210:1113:52
10:12
#24460
21M
21.00 mi15:00:313:34:1110:1210:29
10:29
#24224
35K
21.75 mi15:07:573:41:3710:117:26
9:56
#24141
23M
23.00 mi15:20:533:54:3310:1212:56
10:20
#23991
24M
24.00 mi15:31:074:04:4710:1210:14
10:14
#23911
40K
24.85 mi15:39:584:13:3810:128:51
10:21
#23825
25.2M
25.20 mi15:43:464:17:2610:133:48
11:01
#23780
Finish
26.22 mi15:53:584:27:3810:1310:12
10:01
#23775
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi26254152891528924970(Top 88%)14708(Top 91%)14708(Top 1168%)
10K6.21 mi3.10 mi25779+47515064+22515064+22525381(Top 89%)14868(Top 92%)14868(Top 1181%)
15K9.32 mi3.11 mi25519+26014946+11814946+11824970(Top 88%)14708(Top 91%)14708(Top 1168%)
20K12.43 mi3.11 mi25347+17214850+9614850+9624877(Top 88%)14620(Top 91%)14620(Top 1161%)
Half13.11 mi0.68 mi25302+4514828+2214828+2224698(Top 87%)14521(Top 90%)14521(Top 1153%)
25K15.53 mi2.42 mi25050+25214707+12114707+12123865(Top 84%)14135(Top 88%)14135(Top 1123%)
30K18.64 mi3.11 mi24630+42014492+21514492+21522416(Top 79%)13353(Top 83%)13353(Top 1061%)
20M20.00 mi1.36 mi24460+17014405+8714405+8721588(Top 76%)12857(Top 80%)12857(Top 1021%)
21M21.00 mi1.00 mi24224+23614276+12914276+12919951(Top 70%)12024(Top 75%)12024(Top 955%)
35K21.75 mi0.75 mi24141+8314233+4314233+4321720(Top 76%)12784(Top 79%)12784(Top 1015%)
23M23.00 mi1.25 mi23991+15014136+9714136+9721518(Top 76%)12637(Top 78%)12637(Top 1004%)
24M24.00 mi1.00 mi23911+8014089+4714089+4722033(Top 78%)12830(Top 80%)12830(Top 1019%)
40K24.85 mi0.85 mi23825+8614032+5714032+5721531(Top 76%)12535(Top 78%)12535(Top 996%)
25.2M25.20 mi0.35 mi23780+4514007+2514007+2520709(Top 73%)12156(Top 75%)12156(Top 966%)
Finish26.22 mi1.02 mi23775+513994+1313994+1322961(Top 81%)13256(Top 82%)13256(Top 1053%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

24970

Males

14708

M60-64

14708

5K→10K

3.1 - 6.2 mi

Top 89%
×5stories
+79ft-138ft

Overall

25381

Males

14868

M60-64

14868

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

24970

Males

14708

M60-64

14708

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

24877

Males

14620

M60-64

14620

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

24698

Males

14521

M60-64

14521

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

23865

Males

14135

M60-64

14135

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

22416

Males

13353

M60-64

13353

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

21588

Males

12857

M60-64

12857

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

19951

Males

12024

M60-64

12024

21M→35K

21.0 - 21.8 mi

Top 76%
×7stories
+17ft-86ft

Overall

21720

Males

12784

M60-64

12784

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

21518

Males

12637

M60-64

12637

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

22033

Males

12830

M60-64

12830

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21531

Males

12535

M60-64

12535

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20709

Males

12156

M60-64

12156

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

22961

Males

13256

M60-64

13256

Passing Analysis

Category:
Athletes Passed
2660
Passed By
181
Net Change
+2479
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26254
5K → 10K50328+475#26254#25779
10K → 15K28727+260#25779#25519
15K → 20K21543+172#25519#25347
20K → Half483+45#25347#25302
Half → 25K2575+252#25302#25050
25K → 30K4255+420#25050#24630
30K → 20M1722+170#24630#24460
20M → 21M2360+236#24460#24224
21M → 35K885+83#24224#24141
35K → 23M1599+150#24141#23991
23M → 24M877+80#23991#23911
24M → 40K948+86#23911#23825
40K → 25.2M483+45#23825#23780
25.2M → Finish4136+5#23780#23775
TOTALS2660181+2479
📊

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