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BOSTON MARATHON 2025

Zachary Syler

Bib: 3337•M

GA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 6%
Gender (Male)
#0 / 16105
Top 11%
Division (M18-39)
#0 / 5642
Top 26%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:39
Rank: #2601
Start → 5K
19:39 | 6:19/mi
10K· 6.21 mi
39:13
Rank: #2500 (+101)
5K → 10K
19:34 | 6:18/mi
15K· 9.32 mi
58:42
Rank: #2363 (+137)
10K → 15K
19:29 | 6:16/mi
20K· 12.43 mi
1:18:07
Rank: #2180 (+183)
15K → 20K
19:25 | 6:15/mi
Half· 13.11 mi
1:22:22
Rank: #2172 (+8)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:37:27
Rank: #2060 (+112)
Half → 25K
15:05 | 6:13/mi
30K· 18.64 mi
1:56:59
Rank: #1831 (+229)
25K → 30K
19:32 | 6:17/mi
20M
2:05:32
Rank: #1723 (+108)
30K → 20M
8:33 | 6:18/mi
21M
2:12:24
Rank: #1701 (+22)
20M → 21M
6:52 | 6:52/mi
35K· 21.75 mi
2:17:21
Rank: #1720 (-19)
21M → 35K
4:57 | 6:37/mi
23M
2:25:39
Rank: #1704 (+16)
35K → 23M
8:18 | 6:38/mi
24M
2:32:14
Rank: #1704
23M → 24M
6:35 | 6:35/mi
40K· 24.85 mi
2:38:10
Rank: #1759 (-55)
24M → 40K
5:56 | 6:56/mi
25.2M
2:40:59
Rank: #1801 (-42)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
2:47:41
Rank: #1824 (-23)
25.2M → Finish
6:42 | 6:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:22
Pace6:17 /mi
2nd Half
Distance13.11 mi
Time1:25:19
Pace6:30 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:2119:396:1919:39
6:19
-
10K
6.21 mi10:40:5539:136:1919:34
6:18
-0:01
15K
9.32 mi11:00:2458:426:1819:29
6:16
-0:02
20K
12.43 mi11:19:491:18:076:1719:25
6:15
-0:01
Half
13.11 mi11:24:041:22:226:174:15
6:14
-0:01
25K
15.53 mi11:39:091:37:276:1615:05
6:13
-0:01
30K
18.64 mi11:58:411:56:596:1719:32
6:17
+0:04
20M
20.00 mi12:07:142:05:326:178:33
6:18
+0:01
21M
21.00 mi12:14:062:12:246:186:52
6:52
+0:34
35K
21.75 mi12:19:032:17:216:194:57
6:37
-0:15
23M
23.00 mi12:27:212:25:396:208:18
6:38
+0:01
24M
24.00 mi12:33:562:32:146:216:35
6:35
-0:03
40K
24.85 mi12:39:522:38:106:225:56
6:56
+0:21
25.2M
25.20 mi12:42:412:40:596:232:49
8:10
+1:14
Finish
26.22 mi12:49:232:47:416:246:42
6:34
-1:36

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

6:13 /mi

Average Pace

6:24 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:05:32

75% of race

Time at Slower Pace

42:09

25% of race

Average Pace: 6:24 /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 mi10:21:2119:396:1919:39
6:19
#2601
10K
6.21 mi10:40:5539:136:1919:34
6:18
#2500
15K
9.32 mi11:00:2458:426:1819:29
6:16
#2363
20K
12.43 mi11:19:491:18:076:1719:25
6:15
#2180
Half
13.11 mi11:24:041:22:226:174:15
6:14
#2172
25K
15.53 mi11:39:091:37:276:1615:05
6:13
#2060
30K
18.64 mi11:58:411:56:596:1719:32
6:17
#1831
20M
20.00 mi12:07:142:05:326:178:33
6:18
#1723
21M
21.00 mi12:14:062:12:246:186:52
6:52
#1701
35K
21.75 mi12:19:032:17:216:194:57
6:37
#1720
23M
23.00 mi12:27:212:25:396:208:18
6:38
#1704
24M
24.00 mi12:33:562:32:146:216:35
6:35
#1704
40K
24.85 mi12:39:522:38:106:225:56
6:56
#1759
25.2M
25.20 mi12:42:412:40:596:232:49
8:10
#1801
Finish
26.22 mi12:49:232:47:416:246:42
6:34
#1824
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2601247724772212(Top 8%)2108(Top 13%)2108(Top 37%)
10K6.21 mi3.10 mi2500+1012382+952382+952420(Top 9%)2315(Top 14%)2315(Top 41%)
15K9.32 mi3.11 mi2363+1372258+1242258+1242212(Top 8%)2108(Top 13%)2108(Top 37%)
20K12.43 mi3.11 mi2180+1832081+1772081+1771799(Top 6%)1710(Top 11%)1710(Top 30%)
Half13.11 mi0.68 mi2172+82073+82073+82171(Top 8%)2075(Top 13%)2075(Top 37%)
25K15.53 mi2.42 mi2060+1121965+1081965+1081552(Top 5%)1474(Top 9%)1474(Top 26%)
30K18.64 mi3.11 mi1831+2291742+2231742+2231173(Top 4%)1107(Top 7%)1107(Top 20%)
20M20.00 mi1.36 mi1723+1081637+1051637+105954(Top 3%)900(Top 6%)900(Top 16%)
21M21.00 mi1.00 mi1701+221613+241613+241771(Top 6%)1672(Top 10%)1672(Top 30%)
35K21.75 mi0.75 mi1720-191630-171630-173060(Top 11%)2815(Top 17%)2815(Top 50%)
23M23.00 mi1.25 mi1704+161614+161614+161960(Top 7%)1831(Top 11%)1831(Top 32%)
24M24.00 mi1.00 mi1704161416142425(Top 9%)2241(Top 14%)2241(Top 40%)
40K24.85 mi0.85 mi1759-551666-521666-523572(Top 13%)3168(Top 20%)3168(Top 56%)
25.2M25.20 mi0.35 mi1801-421705-391705-396801(Top 24%)5220(Top 32%)5220(Top 93%)
Finish26.22 mi1.02 mi1824-231726-211726-213204(Top 11%)2836(Top 18%)2836(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2212

Males

2108

M18-39

2108

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2420

Males

2315

M18-39

2315

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2212

Males

2108

M18-39

2108

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1799

Males

1710

M18-39

1710

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2171

Males

2075

M18-39

2075

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1552

Males

1474

M18-39

1474

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1173

Males

1107

M18-39

1107

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

954

Males

900

M18-39

900

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1771

Males

1672

M18-39

1672

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3060

Males

2815

M18-39

2815

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1960

Males

1831

M18-39

1831

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2425

Males

2241

M18-39

2241

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3572

Males

3168

M18-39

3168

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6801

Males

5220

M18-39

5220

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3204

Males

2836

M18-39

2836

Passing Analysis

Category:
Athletes Passed
1188
Passed By
411
Net Change
+777
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2601
5K → 10K16766+101#2601#2500
10K → 15K17033+137#2500#2363
15K → 20K1929+183#2363#2180
20K → Half124+8#2180#2172
Half → 25K1197+112#2172#2060
25K → 30K2334+229#2060#1831
30K → 20M1080+108#1831#1723
20M → 21M5028+22#1723#1701
21M → 35K1332-19#1701#1720
35K → 23M5034+16#1720#1704
23M → 24M33330#1704#1704
24M → 40K1166-55#1704#1759
40K → 25.2M547-42#1759#1801
25.2M → Finish2548-23#1801#1824
TOTALS1188411+777
📊

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