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BOSTON MARATHON 2025

Blake Zufall

Bib: 1028•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 16%
Division (M18-39)
#0 / 5642
Top 37%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:52
Rank: #1324
Start → 5K
18:52 | 6:04/mi
10K· 6.21 mi
38:15
Rank: #1658 (-334)
5K → 10K
19:23 | 6:14/mi
15K· 9.32 mi
57:07
Rank: #1521 (+137)
10K → 15K
18:52 | 6:04/mi
20K· 12.43 mi
1:15:54
Rank: #1362 (+159)
15K → 20K
18:47 | 6:03/mi
Half· 13.11 mi
1:19:57
Rank: #1335 (+27)
20K → Half
4:03 | 5:56/mi
25K· 15.53 mi
1:34:57
Rank: #1323 (+12)
Half → 25K
15:00 | 6:11/mi
30K· 18.64 mi
1:55:36
Rank: #1491 (-168)
25K → 30K
20:39 | 6:39/mi
20M
2:05:32
Rank: #1721 (-230)
30K → 20M
9:56 | 7:19/mi
21M
2:13:16
Rank: #1889 (-168)
20M → 21M
7:44 | 7:44/mi
35K· 21.75 mi
2:18:49
Rank: #2050 (-161)
21M → 35K
5:33 | 7:25/mi
23M
2:28:44
Rank: #2352 (-302)
35K → 23M
9:55 | 7:55/mi
24M
2:36:32
Rank: #2581 (-229)
23M → 24M
7:48 | 7:48/mi
40K· 24.85 mi
2:43:18
Rank: #2754 (-173)
24M → 40K
6:46 | 7:55/mi
25.2M
2:46:07
Rank: #2797 (-43)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
2:52:54
Rank: #2799 (-2)
25.2M → Finish
6:47 | 6:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:57
Pace6:06 /mi
2nd Half
Distance13.11 mi
Time1:32:57
Pace7:05 /mi
📊Positive Split: 16.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:0318:526:0418:52
6:04
-
10K
6.21 mi10:38:2638:156:0919:23
6:14
+0:10
15K
9.32 mi10:57:1857:076:0818:52
6:04
-0:10
20K
12.43 mi11:16:051:15:546:0618:47
6:03
-0:01
Half
13.11 mi11:20:081:19:576:064:03
5:56
-0:07
25K
15.53 mi11:35:081:34:576:0715:00
6:11
+0:15
30K
18.64 mi11:55:471:55:366:1220:39
6:39
+0:28
20M
20.00 mi12:05:432:05:326:179:56
7:19
+0:40
21M
21.00 mi12:13:272:13:166:217:44
7:44
+0:25
35K
21.75 mi12:19:002:18:496:235:33
7:25
-0:19
23M
23.00 mi12:28:552:28:446:289:55
7:55
+0:30
24M
24.00 mi12:36:432:36:326:317:48
7:48
-0:07
40K
24.85 mi12:43:292:43:186:346:46
7:55
+0:07
25.2M
25.20 mi12:46:182:46:076:362:49
8:10
+0:15
Finish
26.22 mi12:53:052:52:546:366:47
6:39
-1:31

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

5:56 /mi

Average Pace

6:36 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:57

55% of race

Time at Steady Pace

27:26

16% of race

Time at Slower Pace

50:31

29% of race

Average Pace: 6:36 /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 mi10:19:0318:526:0418:52
6:04
#1324
10K
6.21 mi10:38:2638:156:0919:23
6:14
#1658
15K
9.32 mi10:57:1857:076:0818:52
6:04
#1521
20K
12.43 mi11:16:051:15:546:0618:47
6:03
#1362
Half
13.11 mi11:20:081:19:576:064:03
5:56
#1335
25K
15.53 mi11:35:081:34:576:0715:00
6:11
#1323
30K
18.64 mi11:55:471:55:366:1220:39
6:39
#1491
20M
20.00 mi12:05:432:05:326:179:56
7:19
#1721
21M
21.00 mi12:13:272:13:166:217:44
7:44
#1889
35K
21.75 mi12:19:002:18:496:235:33
7:25
#2050
23M
23.00 mi12:28:552:28:446:289:55
7:55
#2352
24M
24.00 mi12:36:432:36:326:317:48
7:48
#2581
40K
24.85 mi12:43:292:43:186:346:46
7:55
#2754
25.2M
25.20 mi12:46:182:46:076:362:49
8:10
#2797
Finish
26.22 mi12:53:052:52:546:366:47
6:39
#2799
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1324125912591274(Top 4%)1209(Top 8%)1209(Top 21%)
10K6.21 mi3.10 mi1658-3341578-3191578-3192089(Top 7%)1992(Top 12%)1992(Top 35%)
15K9.32 mi3.11 mi1521+1371445+1331445+1331274(Top 4%)1209(Top 8%)1209(Top 21%)
20K12.43 mi3.11 mi1362+1591292+1531292+153991(Top 3%)934(Top 6%)934(Top 17%)
Half13.11 mi0.68 mi1335+271265+271265+27967(Top 3%)917(Top 6%)917(Top 16%)
25K15.53 mi2.42 mi1323+121252+131252+131408(Top 5%)1336(Top 8%)1336(Top 24%)
30K18.64 mi3.11 mi1491-1681411-1591411-1592622(Top 9%)2481(Top 15%)2481(Top 44%)
20M20.00 mi1.36 mi1721-2301635-2241635-2245817(Top 20%)5060(Top 31%)5060(Top 90%)
21M21.00 mi1.00 mi1889-1681796-1611796-1615793(Top 20%)4912(Top 30%)4912(Top 87%)
35K21.75 mi0.75 mi2050-1611949-1531949-1537984(Top 28%)6269(Top 39%)6269(Top 111%)
23M23.00 mi1.25 mi2352-3022241-2922241-2929400(Top 33%)6910(Top 43%)6910(Top 122%)
24M24.00 mi1.00 mi2581-2292448-2072448-2079749(Top 34%)7020(Top 44%)7020(Top 124%)
40K24.85 mi0.85 mi2754-1732609-1612609-1619502(Top 33%)6776(Top 42%)6776(Top 120%)
25.2M25.20 mi0.35 mi2797-432648-392648-396745(Top 24%)5164(Top 32%)5164(Top 92%)
Finish26.22 mi1.02 mi2799-22649-12649-13616(Top 13%)3142(Top 20%)3142(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1274

Males

1209

M18-39

1209

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

2089

Males

1992

M18-39

1992

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1274

Males

1209

M18-39

1209

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

991

Males

934

M18-39

934

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

967

Males

917

M18-39

917

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1408

Males

1336

M18-39

1336

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2622

Males

2481

M18-39

2481

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5817

Males

5060

M18-39

5060

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5793

Males

4912

M18-39

4912

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

7984

Males

6269

M18-39

6269

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

9400

Males

6910

M18-39

6910

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9749

Males

7020

M18-39

7020

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9502

Males

6776

M18-39

6776

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6745

Males

5164

M18-39

5164

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3616

Males

3142

M18-39

3142

Passing Analysis

Category:
Athletes Passed
506
Passed By
1981
Net Change
-1475
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1324
5K → 10K7341-334#1324#1658
10K → 15K1436+137#1658#1521
15K → 20K1667+159#1521#1362
20K → Half270+27#1362#1335
Half → 25K4937+12#1335#1323
25K → 30K15183-168#1323#1491
30K → 20M8238-230#1491#1721
20M → 21M9177-168#1721#1889
21M → 35K9170-161#1889#2050
35K → 23M7309-302#2050#2352
23M → 24M12241-229#2352#2581
24M → 40K8181-173#2581#2754
40K → 25.2M649-43#2754#2797
25.2M → Finish4042-2#2797#2799
TOTALS5061981-1475
📊

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