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BOSTON MARATHON 2025

Zachary Buller

Bib: 29717•M

NY

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:04/mi
28:10
↑ 97↓ 3451.5%
10K· 6.21 mi
8:59/mi
56:06
↑ 79↓ 1380.4%
15K· 9.32 mi
8:45/mi
1:23:17
↑ 67↓ 78
20K· 12.43 mi
9:00/mi
1:51:14
↑ 106↓ 860.1%
Half· 13.11 mi
8:49/mi
1:57:15
↑ 19↓ 370.5%
25K· 15.53 mi
10:05/mi
2:21:43
↑ 66↓ 880.2%
30K· 18.64 mi
11:05/mi
2:56:08
↑ 181↓ 1480.2%
20M
11:55/mi
3:12:20
↑ 64↓ 500.2%
21M
11:52/mi
3:24:12
↑ 106↓ 241.6%
35K· 21.75 mi
10:46/mi
3:32:15
↑ 17↓ 861.7%
23M
18:45/mi
3:55:43
↑ 23↓ 630.6%
24M
13:56/mi
4:09:39
↓ 821.3%
40K· 24.85 mi
9:34/mi
4:17:50
↓ 200.3%
25.2M
9:31/mi
4:21:07
↑ 13↓ 160.2%
Finish· 26.22 mi
8:24/mi
4:29:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:15
Pace8:57 /mi
2nd Half
Distance13.11 mi
Time2:32:26
Pace11:38 /mi
📊Positive Split: 30.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:1528:109:0428:10
9:04
-
10K
6.21 mi12:22:1156:069:0227:56
8:59
-0:05
15K
9.32 mi12:49:221:23:178:5627:11
8:45
-0:14
20K
12.43 mi13:17:191:51:148:5727:57
9:00
+0:15
Half
13.11 mi13:23:201:57:158:576:01
8:49
-0:11
25K
15.53 mi13:47:482:21:439:0724:28
10:05
+1:16
30K
18.64 mi14:22:132:56:089:2734:25
11:05
+1:00
20M
20.00 mi14:38:253:12:209:3716:12
11:55
+0:50
21M
21.00 mi14:50:173:24:129:4311:52
11:52
-0:03
35K
21.75 mi14:58:203:32:159:468:03
10:46
-1:06
23M
23.00 mi15:21:483:55:4310:1523:28
18:45
+7:59
24M
24.00 mi15:35:444:09:3910:2413:56
13:56
-4:49
40K
24.85 mi15:43:554:17:5010:228:11
9:34
-4:22
25.2M
25.20 mi15:47:124:21:0710:223:17
9:31
-0:03
Finish
26.22 mi15:55:464:29:4110:188:34
8:24
-1:07

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

8:24 /mi

Average Pace

10:18 /mi

Slowest Pace

18:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:49:48

63% of race

Time at Slower Pace

1:39:53

37% of race

Average Pace: 10:17 /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 mi11:54:1528:109:0428:10
9:04
#22704
10K
6.21 mi12:22:1156:069:0227:56
8:59
#22535
15K
9.32 mi12:49:221:23:178:5627:11
8:45
#21998
20K
12.43 mi13:17:191:51:148:5727:57
9:00
#21711
Half
13.11 mi13:23:201:57:158:576:01
8:49
#21663
25K
15.53 mi13:47:482:21:439:0724:28
10:05
#22117
30K
18.64 mi14:22:132:56:089:2734:25
11:05
#22655
20M
20.00 mi14:38:253:12:209:3716:12
11:55
#22898
21M
21.00 mi14:50:173:24:129:4311:52
11:52
#22936
35K
21.75 mi14:58:203:32:159:468:03
10:46
#22971
23M
23.00 mi15:21:483:55:4310:1523:28
18:45
#24119
24M
24.00 mi15:35:444:09:3910:2413:56
13:56
#24417
40K
24.85 mi15:43:554:17:5010:228:11
9:34
#24259
25.2M
25.20 mi15:47:124:21:0710:223:17
9:31
#24167
Finish
26.22 mi15:55:464:29:4110:188:34
8:24
#23984
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22704136321363220754(Top 73%)12841(Top 80%)12841(Top 228%)
10K6.21 mi3.10 mi22535+16913565+6713565+6722350(Top 79%)13507(Top 84%)13507(Top 239%)
15K9.32 mi3.11 mi21998+53713335+23013335+23020754(Top 73%)12841(Top 80%)12841(Top 228%)
20K12.43 mi3.11 mi21711+28713210+12513210+12520946(Top 74%)12869(Top 80%)12869(Top 228%)
Half13.11 mi0.68 mi21663+4813190+2013190+2020996(Top 74%)12909(Top 80%)12909(Top 229%)
25K15.53 mi2.42 mi22117-45413396-20613396-20623480(Top 83%)13949(Top 87%)13949(Top 247%)
30K18.64 mi3.11 mi22655-53813598-20213598-20224138(Top 85%)14132(Top 88%)14132(Top 250%)
20M20.00 mi1.36 mi22898-24313679-8113679-8125149(Top 89%)14526(Top 90%)14526(Top 257%)
21M21.00 mi1.00 mi22936-3813682-313682-323344(Top 82%)13608(Top 84%)13608(Top 241%)
35K21.75 mi0.75 mi22971-3513686-413686-423718(Top 84%)13755(Top 85%)13755(Top 244%)
23M23.00 mi1.25 mi24119-114814199-51314199-51328351(Top 100%)16064(Top 100%)16064(Top 285%)
24M24.00 mi1.00 mi24417-29814332-13314332-13327605(Top 97%)15596(Top 97%)15596(Top 276%)
40K24.85 mi0.85 mi24259+15814242+9014242+9018994(Top 67%)11325(Top 70%)11325(Top 201%)
25.2M25.20 mi0.35 mi24167+9214185+5714185+5714695(Top 52%)9288(Top 58%)9288(Top 165%)
Finish26.22 mi1.02 mi23984+18314089+9614089+9615622(Top 55%)9776(Top 61%)9776(Top 173%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

20754

Males

12841

M18-39

12841

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22350

Males

13507

M18-39

13507

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

20754

Males

12841

M18-39

12841

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

20946

Males

12869

M18-39

12869

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

20996

Males

12909

M18-39

12909

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

23480

Males

13949

M18-39

13949

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

24138

Males

14132

M18-39

14132

30K→20M

18.6 - 20.0 mi

Top 89%
×5story building
+64ft-50ft

Overall

25149

Males

14526

M18-39

14526

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

23344

Males

13608

M18-39

13608

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23718

Males

13755

M18-39

13755

35K→23M

21.8 - 23.0 mi

Top 100%
×5story building
+23ft-63ft

Overall

28351

Males

16064

M18-39

16064

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

27605

Males

15596

M18-39

15596

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

18994

Males

11325

M18-39

11325

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14695

Males

9288

M18-39

9288

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

15622

Males

9776

M18-39

9776

Passing Analysis

Category:
Athletes Passed
1981
Passed By
3261
Net Change
-1280
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22704
5K → 10K340171+169#22704#22535
10K → 15K56225+537#22535#21998
15K → 20K34659+287#21998#21711
20K → Half6214+48#21711#21663
Half → 25K45499-454#21663#22117
25K → 30K65603-538#22117#22655
30K → 20M30273-243#22655#22898
20M → 21M5694-38#22898#22936
21M → 35K3065-35#22936#22971
35K → 23M51153-1148#22971#24119
23M → 24M7305-298#24119#24417
24M → 40K1580+158#24417#24259
40K → 25.2M920+92#24259#24167
25.2M → Finish1830+183#24167#23984
TOTALS19813261-1280
📊

Passing Visuals

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