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BOSTON MARATHON 2026

Jacob Zerko

ON

Bib: 1800 M

0:00
0:00
/ mi
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Overall
#0 / 29021
Top 13%
Gender (Male)
#0 / 16340
Top 22%
Division (M18-39)
#0 / 5723
Top 47%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:16/mi
19:27
↑ 97↓ 345
10K· 6.21 mi
6:19/mi
39:02
↑ 79↓ 138
15K· 9.32 mi
6:17/mi
58:33
↑ 67↓ 78
20K· 12.43 mi
6:22/mi
1:18:18
↑ 106↓ 86
HALF· 13.11 mi
6:22/mi
1:22:38
↑ 19↓ 37
25K· 15.53 mi
6:29/mi
1:38:19
↑ 66↓ 88
30K· 18.64 mi
6:41/mi
1:59:04
↑ 181↓ 148
20M
6:56/mi
2:08:29
↑ 64↓ 50
21M
7:15/mi
2:15:44
↑ 106↓ 24
35K· 21.75 mi
6:47/mi
2:20:48
↑ 17↓ 86
23M
7:13/mi
2:29:49
↑ 23↓ 63
24M
7:09/mi
2:36:58
↓ 82
40K· 24.85 mi
7:26/mi
2:43:19
↓ 20
25.2M
8:05/mi
2:46:06
↑ 13↓ 16
FINISH· 26.22 mi
7:31/mi
2:53:45
↑ 22↓ 21
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via HALF
1:22:386:19 /mi⚡ faster
2nd Half
1:31:076:58 /mi+10.3%
Positive split — 10.3% 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
19:276:163.11 mi19:27
6:16
-
10K
39:026:173.10 mi19:35
6:19
+0:03
15K
58:336:173.11 mi19:31
6:17
-0:02
20K
1:18:186:193.11 mi19:45
6:22
+0:05
HALF(13.11 mi)
1:22:386:190.68 mi4:20
6:22
0:00
25K
1:38:196:202.42 mi15:41
6:29
+0:07
30K
1:59:046:243.11 mi20:45
6:41
+0:12
20M
2:08:296:261.36 mi9:25
6:56
+0:15
21M
2:15:446:281.00 mi7:15
7:15
+0:19
35K
2:20:486:290.75 mi5:04
6:47
-0:28
23M
2:29:496:311.25 mi9:01
7:13
+0:26
24M
2:36:586:331.00 mi7:09
7:09
-0:04
40K
2:43:196:350.85 mi6:21
7:26
+0:17
25.2M
2:46:066:360.35 mi2:47
8:05
+0:39
FINISH(26.22 mi)
2:53:456:381.02 mi7:39
7:31
-0:34
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:16 /mi

Average Pace

6:38 /mi

Slowest Pace

8:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:38:19

57% of race

Time at Steady Pace

35:14

20% of race

Time at Slower Pace

40:12

23% of race

Average Pace: 6:38 /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. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi244023452345276326562656
10K3.10 mi2642-2022540-1952540-195285827492749
15K3.11 mi2653-112551-112551-11276326562656
20K3.11 mi2696-432593-422593-42292428112811
HALF(13.11 mi)0.68 mi2741-452636-432636-43345133073307
25K2.42 mi2808-672700-642700-64327931323132
30K3.11 mi2942-1342825-1252825-125358133603360
20M1.36 mi3016-742890-652890-65502544914491
21M1.00 mi3080-642947-572947-57490843174317
35K0.75 mi3134-542999-522999-52540547304730
23M1.25 mi3305-1713153-1543153-154675855955595
24M1.00 mi3421-1163249-963249-96746559375937
40K0.85 mi3545-1243354-1053354-105828363096309
25.2M0.35 mi3607-623403-493403-49867664126412
FINISH(26.22 mi)1.02 mi3820-2133576-1733576-1731140577977797

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21story building
+97ft-345ft

Overall

2763

Males

2656

M18-39

2656

5K→10K

3.1 - 6.2 mi

Top 10%
×5story building
+79ft-138ft

Overall

2858

Males

2749

M18-39

2749

10K→15K

6.2 - 9.3 mi

Top 10%
×3story building
+67ft-78ft

Overall

2763

Males

2656

M18-39

2656

15K→20K

9.3 - 12.4 mi

Top 10%
×5story building
+106ft-86ft

Overall

2924

Males

2811

M18-39

2811

20K→HALF

12.4 - 13.1 mi

Top 12%
×2story building
+19ft-37ft

Overall

3451

Males

3307

M18-39

3307

HALF→25K

13.1 - 15.5 mi

Top 11%
×4story building
+66ft-88ft

Overall

3279

Males

3132

M18-39

3132

25K→30K

15.5 - 18.6 mi

Top 12%
×9story building
+181ft-148ft

Overall

3581

Males

3360

M18-39

3360

30K→20M

18.6 - 20.0 mi

Top 17%
×5story building
+64ft-50ft

Overall

5025

Males

4491

M18-39

4491

20M→21M

20.0 - 21.0 mi

Top 17%
×8story building
+106ft-24ft

Overall

4908

Males

4317

M18-39

4317

21M→35K

21.0 - 21.8 mi

Top 19%
×7story building
+17ft-86ft

Overall

5405

Males

4730

M18-39

4730

35K→23M

21.8 - 23.0 mi

Top 23%
×5story building
+23ft-63ft

Overall

6758

Males

5595

M18-39

5595

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

7465

Males

5937

M18-39

5937

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8283

Males

6309

M18-39

6309

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8676

Males

6412

M18-39

6412

25.2M→FINISH

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

11405

Males

7797

M18-39

7797

Passing Analysis

Category:
▼Net Change
0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#2440
5K → 10K
23634-202
#2440 → #2642
10K → 15K
8473-11
#2642 → #2653
15K → 20K
9855-43
#2653 → #2696
20K → HALF
472-45
#2696 → #2741
HALF → 25K
11649-67
#2741 → #2808
25K → 30K
19056-134
#2808 → #2942
30K → 20M
10228-74
#2942 → #3016
20M → 21M
8521-64
#3016 → #3080
21M → 35K
6915-54
#3080 → #3134
35K → 23M
19423-171
#3134 → #3305
23M → 24M
13115-116
#3305 → #3421
24M → 40K
14218-124
#3421 → #3545
40K → 25.2M
664-62
#3545 → #3607
25.2M → FINISH
22714-213
#3607 → #3820
TOTALS
1787407-1380
#2440 → #3820

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