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BOSTON MARATHON 2025

Zachary Tentor

Bib: 3549•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 11%
Gender (Male)
#0 / 16105
Top 18%
Division (M18-39)
#0 / 5642
Top 40%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:26
Rank: #4376
Start → 5K
20:26 | 6:35/mi
10K· 6.21 mi
41:04
Rank: #4568 (-192)
5K → 10K
20:38 | 6:38/mi
15K· 9.32 mi
1:01:57
Rank: #4764 (-196)
10K → 15K
20:53 | 6:43/mi
20K· 12.43 mi
1:22:49
Rank: #4676 (+88)
15K → 20K
20:52 | 6:43/mi
Half· 13.11 mi
1:27:18
Rank: #4634 (+42)
20K → Half
4:29 | 6:34/mi
25K· 15.53 mi
1:43:22
Rank: #4400 (+234)
Half → 25K
16:04 | 6:38/mi
30K· 18.64 mi
2:04:26
Rank: #4117 (+283)
25K → 30K
21:04 | 6:47/mi
20M
2:13:37
Rank: #3970 (+147)
30K → 20M
9:11 | 6:45/mi
21M
2:20:40
Rank: #3836 (+134)
20M → 21M
7:03 | 7:03/mi
35K· 21.75 mi
2:25:37
Rank: #3793 (+43)
21M → 35K
4:57 | 6:37/mi
23M
2:33:58
Rank: #3634 (+159)
35K → 23M
8:21 | 6:40/mi
24M
2:40:29
Rank: #3516 (+118)
23M → 24M
6:31 | 6:31/mi
40K· 24.85 mi
2:46:00
Rank: #3379 (+137)
24M → 40K
5:31 | 6:27/mi
25.2M
2:48:23
Rank: #3302 (+77)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:54:22
Rank: #3084 (+218)
25.2M → Finish
5:59 | 5:52/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:27:18
Pace6:40 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:27:04
Pace6:39 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:3920:266:3520:26
6:35
-
10K
6.21 mi10:46:1741:046:3720:38
6:38
+0:03
15K
9.32 mi11:07:101:01:576:3920:53
6:43
+0:05
20K
12.43 mi11:28:021:22:496:4020:52
6:43
0:00
Half
13.11 mi11:32:311:27:186:404:29
6:34
-0:09
25K
15.53 mi11:48:351:43:226:3916:04
6:38
+0:04
30K
18.64 mi12:09:392:04:266:4121:04
6:47
+0:09
20M
20.00 mi12:18:502:13:376:419:11
6:45
-0:02
21M
21.00 mi12:25:532:20:406:427:03
7:03
+0:18
35K
21.75 mi12:30:502:25:376:424:57
6:37
-0:26
23M
23.00 mi12:39:112:33:586:428:21
6:40
+0:03
24M
24.00 mi12:45:422:40:296:416:31
6:31
-0:09
40K
24.85 mi12:51:132:46:006:415:31
6:27
-0:04
25.2M
25.20 mi12:53:362:48:236:412:23
6:55
+0:28
Finish
26.22 mi12:59:352:54:226:395:59
5:52
-1:03

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

5:52 /mi

Average Pace

6:39 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

11:30

7% of race

Time at Steady Pace

2:12:22

76% of race

Time at Slower Pace

30:30

17% of race

Average Pace: 6:39 /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 mi10:25:3920:266:3520:26
6:35
#4376
10K
6.21 mi10:46:1741:046:3720:38
6:38
#4568
15K
9.32 mi11:07:101:01:576:3920:53
6:43
#4764
20K
12.43 mi11:28:021:22:496:4020:52
6:43
#4676
Half
13.11 mi11:32:311:27:186:404:29
6:34
#4634
25K
15.53 mi11:48:351:43:226:3916:04
6:38
#4400
30K
18.64 mi12:09:392:04:266:4121:04
6:47
#4117
20M
20.00 mi12:18:502:13:376:419:11
6:45
#3970
21M
21.00 mi12:25:532:20:406:427:03
7:03
#3836
35K
21.75 mi12:30:502:25:376:424:57
6:37
#3793
23M
23.00 mi12:39:112:33:586:428:21
6:40
#3634
24M
24.00 mi12:45:422:40:296:416:31
6:31
#3516
40K
24.85 mi12:51:132:46:006:415:31
6:27
#3379
25.2M
25.20 mi12:53:362:48:236:412:23
6:55
#3302
Finish
26.22 mi12:59:352:54:226:395:59
5:52
#3084
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4376411341135261(Top 19%)4860(Top 30%)4860(Top 86%)
10K6.21 mi3.10 mi4568-1924287-1744287-1744778(Top 17%)4468(Top 28%)4468(Top 79%)
15K9.32 mi3.11 mi4764-1964455-1684455-1685261(Top 19%)4860(Top 30%)4860(Top 86%)
20K12.43 mi3.11 mi4676+884366+894366+894556(Top 16%)4234(Top 26%)4234(Top 75%)
Half13.11 mi0.68 mi4634+424331+354331+354106(Top 14%)3845(Top 24%)3845(Top 68%)
25K15.53 mi2.42 mi4400+2344123+2084123+2083616(Top 13%)3403(Top 21%)3403(Top 60%)
30K18.64 mi3.11 mi4117+2833858+2653858+2653320(Top 12%)3103(Top 19%)3103(Top 55%)
20M20.00 mi1.36 mi3970+1473726+1323726+1322715(Top 10%)2544(Top 16%)2544(Top 45%)
21M21.00 mi1.00 mi3836+1343604+1223604+1222442(Top 9%)2278(Top 14%)2278(Top 40%)
35K21.75 mi0.75 mi3793+433563+413563+413026(Top 11%)2781(Top 17%)2781(Top 49%)
23M23.00 mi1.25 mi3634+1593413+1503413+1502115(Top 7%)1976(Top 12%)1976(Top 35%)
24M24.00 mi1.00 mi3516+1183299+1143299+1142117(Top 7%)1964(Top 12%)1964(Top 35%)
40K24.85 mi0.85 mi3379+1373174+1253174+1251447(Top 5%)1341(Top 8%)1341(Top 24%)
25.2M25.20 mi0.35 mi3302+773105+693105+691260(Top 4%)1162(Top 7%)1162(Top 21%)
Finish26.22 mi1.02 mi3084+2182905+2002905+200635(Top 2%)597(Top 4%)597(Top 11%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5261

Males

4860

M18-39

4860

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4778

Males

4468

M18-39

4468

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5261

Males

4860

M18-39

4860

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4556

Males

4234

M18-39

4234

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

4106

Males

3845

M18-39

3845

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3616

Males

3403

M18-39

3403

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3320

Males

3103

M18-39

3103

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2715

Males

2544

M18-39

2544

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2442

Males

2278

M18-39

2278

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3026

Males

2781

M18-39

2781

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

2115

Males

1976

M18-39

1976

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

2117

Males

1964

M18-39

1964

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1447

Males

1341

M18-39

1341

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1260

Males

1162

M18-39

1162

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

635

Males

597

M18-39

597

Passing Analysis

Category:
Athletes Passed
1965
Passed By
673
Net Change
+1292
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4376
5K → 10K78270-192#4376#4568
10K → 15K55251-196#4568#4764
15K → 20K16375+88#4764#4676
20K → Half497+42#4676#4634
Half → 25K24511+234#4634#4400
25K → 30K30623+283#4400#4117
30K → 20M1514+147#4117#3970
20M → 21M1428+134#3970#3836
21M → 35K5613+43#3836#3793
35K → 23M1634+159#3793#3634
23M → 24M1246+118#3634#3516
24M → 40K1381+137#3516#3379
40K → 25.2M770+77#3379#3302
25.2M → Finish2180+218#3302#3084
TOTALS1965673+1292
📊

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