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BOSTON MARATHON 2025

Tommy Jacobs

CA

Bib: 18881 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:17/mi
25:43
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:24/mi
51:49
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:21/mi
1:17:45
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:24/mi
1:43:51
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:14/mi
1:49:28
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:23/mi
2:09:47
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:35/mi
2:36:28
↑ 181↓ 1480.2%
138 ft elev
20M
8:42/mi
2:48:17
↑ 64↓ 500.2%
148 ft elev
21M
9:06/mi
2:57:23
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:25/mi
3:03:41
↑ 17↓ 861.7%
156 ft elev
23M
8:47/mi
3:14:41
↑ 23↓ 630.6%
116 ft elev
24M
8:46/mi
3:23:27
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:45/mi
3:30:56
↓ 200.3%
20 ft elev
25.2M
9:40/mi
3:34:16
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:23/mi
3:42:49
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:49:288:21 /mi⚡ faster
2nd Half
1:53:218:39 /mi+3.5%
Positive split — 3.5% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
25:438:173.11 mi25:43
8:17
-
10K
51:498:203.10 mi26:06
8:24
+0:07
15K
1:17:458:213.11 mi25:56
8:21
-0:03
20K
1:43:518:213.11 mi26:06
8:24
+0:03
Half(13.11 mi)
1:49:288:210.68 mi5:37
8:14
-0:10
25K
2:09:478:212.42 mi20:19
8:23
+0:09
30K
2:36:288:243.11 mi26:41
8:35
+0:12
20M
2:48:178:251.36 mi11:49
8:42
+0:07
21M
2:57:238:271.00 mi9:06
9:06
+0:24
35K
3:03:418:270.75 mi6:18
8:25
-0:41
23M
3:14:418:281.25 mi11:00
8:47
+0:22
24M
3:23:278:291.00 mi8:46
8:46
-0:01
40K
3:30:568:290.85 mi7:29
8:45
-0:01
25.2M
3:34:168:300.35 mi3:20
9:40
+0:55
Finish(26.22 mi)
3:42:498:301.02 mi8:33
8:23
-1:17
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:14 /mi

Average Pace

8:30 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:30:23

94% of race

Time at Steady Pace

12:26

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:30 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi185641184211842183511177511775
10K3.10 mi18850-28611974-13211974-132191861213412134
15K3.11 mi18660+19011895+7911895+79183511177511775
20K3.11 mi18354+30611762+13311762+133175451141911419
Half(13.11 mi)0.68 mi18308+4611736+2611736+26174361137511375
25K2.42 mi17954+35411572+16411572+164164191083110831
30K3.11 mi17423+53111304+26811304+268153111019210192
20M1.36 mi17220+20311190+11411190+1141502999349934
21M1.00 mi16989+23111068+12211068+1221409393829382
35K0.75 mi16905+8411018+5011018+501497797269726
23M1.25 mi16782+12310936+8210936+821502596409640
24M1.00 mi16730+5210885+5110885+51161081008110081
40K0.85 mi16650+8010821+6410821+641490694039403
25.2M0.35 mi16638+1210806+1510806+151539395889588
Finish(26.22 mi)1.02 mi16575+6310761+4510761+451549897139713

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

18351

Males

11775

M55-59

11775

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

19186

Males

12134

M55-59

12134

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

18351

Males

11775

M55-59

11775

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17545

Males

11419

M55-59

11419

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

17436

Males

11375

M55-59

11375

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

16419

Males

10831

M55-59

10831

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

15311

Males

10192

M55-59

10192

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

15029

Males

9934

M55-59

9934

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

14093

Males

9382

M55-59

9382

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14977

Males

9726

M55-59

9726

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

15025

Males

9640

M55-59

9640

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16108

Males

10081

M55-59

10081

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14906

Males

9403

M55-59

9403

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15393

Males

9588

M55-59

9588

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

15498

Males

9713

M55-59

9713

Passing Analysis

Category:
▲Net Change
+0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#18564
5K → 10K
435149-286
#18564 → #18850
10K → 15K
108298+190
#18850 → #18660
15K → 20K
60366+306
#18660 → #18354
20K → Half
1460+46
#18354 → #18308
Half → 25K
23377+354
#18308 → #17954
25K → 30K
25556+531
#17954 → #17423
30K → 20M
23226+203
#17423 → #17220
20M → 21M
13244+231
#17220 → #16989
21M → 35K
21105+84
#16989 → #16905
35K → 23M
42165+123
#16905 → #16782
23M → 24M
50102+52
#16782 → #16730
24M → 40K
36116+80
#16730 → #16650
40K → 25.2M
2537+12
#16650 → #16638
25.2M → Finish
51114+63
#16638 → #16575
TOTALS
9262915+1989
#18564 → #16575

Passing Visualized

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