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BOSTON MARATHON 2025

Zackery Harris

Bib: 407•M

UT

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 35%
Gender (Male)
#0 / 16105
Top 48%
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
20:31
Rank: #4648
Start → 5K
20:31 | 6:36/mi
10K· 6.21 mi
41:15
Rank: #4820 (-172)
5K → 10K
20:44 | 6:40/mi
15K· 9.32 mi
1:02:17
Rank: #5091 (-271)
10K → 15K
21:02 | 6:46/mi
20K· 12.43 mi
1:24:00
Rank: #5568 (-477)
15K → 20K
21:43 | 6:59/mi
Half· 13.11 mi
1:28:48
Rank: #5723 (-155)
20K → Half
4:48 | 7:02/mi
25K· 15.53 mi
1:46:57
Rank: #6455 (-732)
Half → 25K
18:09 | 7:29/mi
30K· 18.64 mi
2:12:12
Rank: #7294 (-839)
25K → 30K
25:15 | 8:08/mi
20M
2:23:51
Rank: #7690 (-396)
30K → 20M
11:39 | 8:34/mi
21M
2:33:08
Rank: #8065 (-375)
20M → 21M
9:17 | 9:17/mi
35K· 21.75 mi
2:39:25
Rank: #8305 (-240)
21M → 35K
6:17 | 8:24/mi
23M
2:50:50
Rank: #8885 (-580)
35K → 23M
11:25 | 9:07/mi
24M
2:59:34
Rank: #9248 (-363)
23M → 24M
8:44 | 8:44/mi
40K· 24.85 mi
3:07:00
Rank: #9449 (-201)
24M → 40K
7:26 | 8:42/mi
25.2M
3:10:29
Rank: #9594 (-145)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:19:11
Rank: #9886 (-292)
25.2M → Finish
8:42 | 8:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:48
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:50:23
Pace8:25 /mi
📊Positive Split: 24.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:3820:316:3620:31
6:36
-
10K
6.21 mi10:41:2241:156:3820:44
6:40
+0:04
15K
9.32 mi11:02:241:02:176:4121:02
6:46
+0:06
20K
12.43 mi11:24:071:24:006:4621:43
6:59
+0:13
Half
13.11 mi11:28:551:28:486:464:48
7:02
+0:03
25K
15.53 mi11:47:041:46:576:5318:09
7:29
+0:27
30K
18.64 mi12:12:192:12:127:0625:15
8:08
+0:39
20M
20.00 mi12:23:582:23:517:1211:39
8:34
+0:26
21M
21.00 mi12:33:152:33:087:189:17
9:17
+0:43
35K
21.75 mi12:39:322:39:257:206:17
8:24
-0:53
23M
23.00 mi12:50:572:50:507:2611:25
9:07
+0:43
24M
24.00 mi12:59:412:59:347:298:44
8:44
-0:23
40K
24.85 mi13:07:073:07:007:317:26
8:42
-0:02
25.2M
25.20 mi13:10:363:10:297:343:29
10:06
+1:24
Finish
26.22 mi13:19:183:19:117:368:42
8:32
-1:34

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

6:36 /mi

Average Pace

7:36 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:57

54% of race

Time at Steady Pace

1:08:03

34% of race

Time at Slower Pace

24:11

12% of race

Average Pace: 7:36 /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 mi10:20:3820:316:3620:31
6:36
#4648
10K
6.21 mi10:41:2241:156:3820:44
6:40
#4820
15K
9.32 mi11:02:241:02:176:4121:02
6:46
#5091
20K
12.43 mi11:24:071:24:006:4621:43
6:59
#5568
Half
13.11 mi11:28:551:28:486:464:48
7:02
#5723
25K
15.53 mi11:47:041:46:576:5318:09
7:29
#6455
30K
18.64 mi12:12:192:12:127:0625:15
8:08
#7294
20M
20.00 mi12:23:582:23:517:1211:39
8:34
#7690
21M
21.00 mi12:33:152:33:087:189:17
9:17
#8065
35K
21.75 mi12:39:322:39:257:206:17
8:24
#8305
23M
23.00 mi12:50:572:50:507:2611:25
9:07
#8885
24M
24.00 mi12:59:412:59:347:298:44
8:44
#9248
40K
24.85 mi13:07:073:07:007:317:26
8:42
#9449
25.2M
25.20 mi13:10:363:10:297:343:29
10:06
#9594
Finish
26.22 mi13:19:183:19:117:368:42
8:32
#9886
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4648436043605798(Top 20%)5287(Top 33%)5287(Top 94%)
10K6.21 mi3.10 mi4820-1724508-1484508-1485114(Top 18%)4766(Top 30%)4766(Top 84%)
15K9.32 mi3.11 mi5091-2714740-2324740-2325798(Top 20%)5287(Top 33%)5287(Top 94%)
20K12.43 mi3.11 mi5568-4775127-3875127-3876822(Top 24%)6075(Top 38%)6075(Top 108%)
Half13.11 mi0.68 mi5723-1555253-1265253-1267840(Top 28%)6802(Top 42%)6802(Top 121%)
25K15.53 mi2.42 mi6455-7325830-5775830-5779838(Top 35%)7777(Top 48%)7777(Top 138%)
30K18.64 mi3.11 mi7294-8396419-5896419-58912275(Top 43%)8806(Top 55%)8806(Top 156%)
20M20.00 mi1.36 mi7690-3966652-2336652-23314209(Top 50%)9542(Top 59%)9542(Top 169%)
21M21.00 mi1.00 mi8065-3756844-1926844-19215023(Top 53%)9783(Top 61%)9783(Top 173%)
35K21.75 mi0.75 mi8305-2406975-1316975-13114803(Top 52%)9620(Top 60%)9620(Top 171%)
23M23.00 mi1.25 mi8885-5807268-2937268-29316891(Top 59%)10453(Top 65%)10453(Top 185%)
24M24.00 mi1.00 mi9248-3637448-1807448-18015901(Top 56%)9976(Top 62%)9976(Top 177%)
40K24.85 mi0.85 mi9449-2017517-697517-6914541(Top 51%)9230(Top 57%)9230(Top 164%)
25.2M25.20 mi0.35 mi9594-1457573-567573-5617385(Top 61%)10525(Top 65%)10525(Top 187%)
Finish26.22 mi1.02 mi9886-2927698-1257698-12516412(Top 58%)10105(Top 63%)10105(Top 179%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5798

Males

5287

M18-39

5287

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

5114

Males

4766

M18-39

4766

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5798

Males

5287

M18-39

5287

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6822

Males

6075

M18-39

6075

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

7840

Males

6802

M18-39

6802

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9838

Males

7777

M18-39

7777

25K→30K

15.5 - 18.6 mi

Top 43%
×9stories
+181ft-148ft

Overall

12275

Males

8806

M18-39

8806

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

14209

Males

9542

M18-39

9542

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

15023

Males

9783

M18-39

9783

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

14803

Males

9620

M18-39

9620

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

16891

Males

10453

M18-39

10453

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

15901

Males

9976

M18-39

9976

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14541

Males

9230

M18-39

9230

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17385

Males

10525

M18-39

10525

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

16412

Males

10105

M18-39

10105

Passing Analysis

Category:
Athletes Passed
422
Passed By
5660
Net Change
-5238
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4648
5K → 10K102274-172#4648#4820
10K → 15K47318-271#4820#5091
15K → 20K35512-477#5091#5568
20K → Half2157-155#5568#5723
Half → 25K27759-732#5723#6455
25K → 30K34873-839#6455#7294
30K → 20M29425-396#7294#7690
20M → 21M28403-375#7690#8065
21M → 35K18258-240#8065#8305
35K → 23M31611-580#8305#8885
23M → 24M15378-363#8885#9248
24M → 40K31232-201#9248#9449
40K → 25.2M7152-145#9449#9594
25.2M → Finish16308-292#9594#9886
TOTALS4225660-5238
📊

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