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BOSTON MARATHON 2025

Zach Gavi

Bib: 4164•M

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Overall
#0 / 28404
Top 36%
Gender (Male)
#0 / 16105
Top 49%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:00
Rank: #3388
Start → 5K
20:00 | 6:26/mi
10K· 6.21 mi
39:51
Rank: #3165 (+223)
5K → 10K
19:51 | 6:23/mi
15K· 9.32 mi
1:00:19
Rank: #3482 (-317)
10K → 15K
20:28 | 6:35/mi
20K· 12.43 mi
1:22:02
Rank: #4176 (-694)
15K → 20K
21:43 | 6:59/mi
Half· 13.11 mi
1:26:43
Rank: #4293 (-117)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:44:02
Rank: #4769 (-476)
Half → 25K
17:19 | 7:09/mi
30K· 18.64 mi
2:08:38
Rank: #5992 (-1223)
25K → 30K
24:36 | 7:55/mi
20M
2:22:15
Rank: #7146 (-1154)
30K → 20M
13:37 | 10:01/mi
21M
2:33:26
Rank: #8191 (-1045)
20M → 21M
11:11 | 11:11/mi
35K· 21.75 mi
2:39:12
Rank: #8231 (-40)
21M → 35K
5:46 | 7:42/mi
23M
2:52:31
Rank: #9503 (-1272)
35K → 23M
13:19 | 10:38/mi
24M
3:00:57
Rank: #9720 (-217)
23M → 24M
8:26 | 8:26/mi
40K· 24.85 mi
3:09:06
Rank: #10147 (-427)
24M → 40K
8:09 | 9:32/mi
25.2M
3:13:10
Rank: #10465 (-318)
40K → 25.2M
4:04 | 11:48/mi
Finish· 26.22 mi
3:20:41
Rank: #10340 (+125)
25.2M → Finish
7:31 | 7:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:43
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:53:58
Pace8:42 /mi
📊Positive Split: 31.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3620:006:2620:00
6:26
-
10K
6.21 mi10:42:2739:516:2519:51
6:23
-0:03
15K
9.32 mi11:02:551:00:196:2820:28
6:35
+0:12
20K
12.43 mi11:24:381:22:026:3621:43
6:59
+0:24
Half
13.11 mi11:29:191:26:436:374:41
6:52
-0:07
25K
15.53 mi11:46:381:44:026:4217:19
7:09
+0:17
30K
18.64 mi12:11:142:08:386:5424:36
7:55
+0:46
20M
20.00 mi12:24:512:22:157:0713:37
10:01
+2:06
21M
21.00 mi12:36:022:33:267:1811:11
11:11
+1:10
35K
21.75 mi12:41:482:39:127:195:46
7:42
-3:29
23M
23.00 mi12:55:072:52:317:3013:19
10:38
+2:56
24M
24.00 mi13:03:333:00:577:328:26
8:26
-2:12
40K
24.85 mi13:11:423:09:067:368:09
9:32
+1:06
25.2M
25.20 mi13:15:463:13:107:404:04
11:48
+2:16
Finish
26.22 mi13:23:173:20:417:407:31
7:23
-4:25

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

6:23 /mi

Average Pace

7:40 /mi

Slowest Pace

11:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:00:19

30% of race

Time at Steady Pace

1:30:02

45% of race

Time at Slower Pace

50:20

25% of race

Average Pace: 7:39 /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 mi10:22:3620:006:2620:00
6:26
#3388
10K
6.21 mi10:42:2739:516:2519:51
6:23
#3165
15K
9.32 mi11:02:551:00:196:2820:28
6:35
#3482
20K
12.43 mi11:24:381:22:026:3621:43
6:59
#4176
Half
13.11 mi11:29:191:26:436:374:41
6:52
#4293
25K
15.53 mi11:46:381:44:026:4217:19
7:09
#4769
30K
18.64 mi12:11:142:08:386:5424:36
7:55
#5992
20M
20.00 mi12:24:512:22:157:0713:37
10:01
#7146
21M
21.00 mi12:36:022:33:267:1811:11
11:11
#8191
35K
21.75 mi12:41:482:39:127:195:46
7:42
#8231
23M
23.00 mi12:55:072:52:317:3013:19
10:38
#9503
24M
24.00 mi13:03:333:00:577:328:26
8:26
#9720
40K
24.85 mi13:11:423:09:067:368:09
9:32
#10147
25.2M
25.20 mi13:15:463:13:107:404:04
11:48
#10465
Finish
26.22 mi13:23:173:20:417:407:31
7:23
#10340
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3388321932194144(Top 15%)3899(Top 24%)3899(Top 69%)
10K6.21 mi3.10 mi3165+2233010+2093010+2092988(Top 11%)2846(Top 18%)2846(Top 50%)
15K9.32 mi3.11 mi3482-3173306-2963306-2964144(Top 15%)3899(Top 24%)3899(Top 69%)
20K12.43 mi3.11 mi4176-6943930-6243930-6246823(Top 24%)6076(Top 38%)6076(Top 108%)
Half13.11 mi0.68 mi4293-1174033-1034033-1036702(Top 24%)5998(Top 37%)5998(Top 106%)
25K15.53 mi2.42 mi4769-4764438-4054438-4057235(Top 25%)6280(Top 39%)6280(Top 111%)
30K18.64 mi3.11 mi5992-12235437-9995437-99910769(Top 38%)8066(Top 50%)8066(Top 143%)
20M20.00 mi1.36 mi7146-11546287-8506287-85020991(Top 74%)12578(Top 78%)12578(Top 223%)
21M21.00 mi1.00 mi8191-10456927-6406927-64021836(Top 77%)12889(Top 80%)12889(Top 228%)
35K21.75 mi0.75 mi8231-406932-56932-510109(Top 36%)7419(Top 46%)7419(Top 131%)
23M23.00 mi1.25 mi9503-12727621-6897621-68922354(Top 79%)13040(Top 81%)13040(Top 231%)
24M24.00 mi1.00 mi9720-2177692-717692-7114062(Top 50%)9161(Top 57%)9161(Top 162%)
40K24.85 mi0.85 mi10147-4277867-1757867-17518809(Top 66%)11218(Top 70%)11218(Top 199%)
25.2M25.20 mi0.35 mi10465-3188020-1538020-15322725(Top 80%)13128(Top 82%)13128(Top 233%)
Finish26.22 mi1.02 mi10340+1257923+977923+978326(Top 29%)6102(Top 38%)6102(Top 108%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

4144

Males

3899

M18-39

3899

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

2988

Males

2846

M18-39

2846

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

4144

Males

3899

M18-39

3899

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6823

Males

6076

M18-39

6076

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6702

Males

5998

M18-39

5998

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

7235

Males

6280

M18-39

6280

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10769

Males

8066

M18-39

8066

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

20991

Males

12578

M18-39

12578

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

21836

Males

12889

M18-39

12889

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

10109

Males

7419

M18-39

7419

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

22354

Males

13040

M18-39

13040

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

14062

Males

9161

M18-39

9161

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18809

Males

11218

M18-39

11218

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

22725

Males

13128

M18-39

13128

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8326

Males

6102

M18-39

6102

Passing Analysis

Category:
Athletes Passed
631
Passed By
7581
Net Change
-6952
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3388
5K → 10K26845+223#3388#3165
10K → 15K23340-317#3165#3482
15K → 20K10704-694#3482#4176
20K → Half5122-117#4176#4293
Half → 25K32508-476#4293#4769
25K → 30K291252-1223#4769#5992
30K → 20M61160-1154#5992#7146
20M → 21M21047-1045#7146#8191
21M → 35K4888-40#8191#8231
35K → 23M81280-1272#8231#9503
23M → 24M34251-217#9503#9720
24M → 40K13438-427#9720#10147
40K → 25.2M1319-318#10147#10465
25.2M → Finish15227+125#10465#10340
TOTALS6317581-6952
📊

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