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BOSTON MARATHON 2025

Alexander Bernhardt

Bib: 4270•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 5%
Division (M18-39)
#0 / 5642
Top 12%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:12
Rank: #1732
Start → 5K
19:12 | 6:11/mi
10K· 6.21 mi
38:06
Rank: #1562 (+170)
5K → 10K
18:54 | 6:05/mi
15K· 9.32 mi
57:01
Rank: #1467 (+95)
10K → 15K
18:55 | 6:05/mi
20K· 12.43 mi
1:15:48
Rank: #1318 (+149)
15K → 20K
18:47 | 6:03/mi
Half· 13.11 mi
1:19:54
Rank: #1312 (+6)
20K → Half
4:06 | 6:01/mi
25K· 15.53 mi
1:34:30
Rank: #1210 (+102)
Half → 25K
14:36 | 6:01/mi
30K· 18.64 mi
1:53:20
Rank: #1060 (+150)
25K → 30K
18:50 | 6:04/mi
20M
2:01:38
Rank: #986 (+74)
30K → 20M
8:18 | 6:06/mi
21M
2:08:03
Rank: #938 (+48)
20M → 21M
6:25 | 6:25/mi
35K· 21.75 mi
2:12:33
Rank: #902 (+36)
21M → 35K
4:30 | 6:01/mi
23M
2:20:20
Rank: #879 (+23)
35K → 23M
7:47 | 6:13/mi
24M
2:26:25
Rank: #849 (+30)
23M → 24M
6:05 | 6:05/mi
40K· 24.85 mi
2:31:44
Rank: #832 (+17)
24M → 40K
5:19 | 6:13/mi
25.2M
2:34:06
Rank: #834 (-2)
40K → 25.2M
2:22 | 6:52/mi
Finish· 26.22 mi
2:40:04
Rank: #811 (+23)
25.2M → Finish
5:58 | 5:51/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:19:54
Pace6:06 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:20:10
Pace6:07 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1919:126:1119:12
6:11
-
10K
6.21 mi10:40:1338:066:0818:54
6:05
-0:06
15K
9.32 mi10:59:0857:016:0718:55
6:05
0:00
20K
12.43 mi11:17:551:15:486:0618:47
6:03
-0:02
Half
13.11 mi11:22:011:19:546:064:06
6:01
-0:02
25K
15.53 mi11:36:371:34:306:0514:36
6:01
0:00
30K
18.64 mi11:55:271:53:206:0518:50
6:04
+0:03
20M
20.00 mi12:03:452:01:386:058:18
6:06
+0:02
21M
21.00 mi12:10:102:08:036:066:25
6:25
+0:19
35K
21.75 mi12:14:402:12:336:064:30
6:01
-0:24
23M
23.00 mi12:22:272:20:206:067:47
6:13
+0:12
24M
24.00 mi12:28:322:26:256:066:05
6:05
-0:08
40K
24.85 mi12:33:512:31:446:065:19
6:13
+0:08
25.2M
25.20 mi12:36:132:34:066:072:22
6:52
+0:39
Finish
26.22 mi12:42:112:40:046:075:58
5:51
-1:01

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

5:51 /mi

Average Pace

6:07 /mi

Slowest Pace

6:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:42

99% of race

Time at Steady Pace

2:22

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:06 /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 mi10:21:1919:126:1119:12
6:11
#1732
10K
6.21 mi10:40:1338:066:0818:54
6:05
#1562
15K
9.32 mi10:59:0857:016:0718:55
6:05
#1467
20K
12.43 mi11:17:551:15:486:0618:47
6:03
#1318
Half
13.11 mi11:22:011:19:546:064:06
6:01
#1312
25K
15.53 mi11:36:371:34:306:0514:36
6:01
#1210
30K
18.64 mi11:55:271:53:206:0518:50
6:04
#1060
20M
20.00 mi12:03:452:01:386:058:18
6:06
#986
21M
21.00 mi12:10:102:08:036:066:25
6:25
#938
35K
21.75 mi12:14:402:12:336:064:30
6:01
#902
23M
23.00 mi12:22:272:20:206:067:47
6:13
#879
24M
24.00 mi12:28:322:26:256:066:05
6:05
#849
40K
24.85 mi12:33:512:31:446:065:19
6:13
#832
25.2M
25.20 mi12:36:132:34:066:072:22
6:52
#834
Finish
26.22 mi12:42:112:40:046:075:58
5:51
#811
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1732164416441321(Top 5%)1254(Top 8%)1254(Top 22%)
10K6.21 mi3.10 mi1562+1701485+1591485+1591403(Top 5%)1331(Top 8%)1331(Top 24%)
15K9.32 mi3.11 mi1467+951392+931392+931321(Top 5%)1254(Top 8%)1254(Top 22%)
20K12.43 mi3.11 mi1318+1491249+1431249+143986(Top 3%)929(Top 6%)929(Top 16%)
Half13.11 mi0.68 mi1312+61243+61243+61149(Top 4%)1086(Top 7%)1086(Top 19%)
25K15.53 mi2.42 mi1210+1021144+991144+99861(Top 3%)808(Top 5%)808(Top 14%)
30K18.64 mi3.11 mi1060+150999+145999+145608(Top 2%)567(Top 4%)567(Top 10%)
20M20.00 mi1.36 mi986+74928+71928+71554(Top 2%)521(Top 3%)521(Top 9%)
21M21.00 mi1.00 mi938+48883+45883+45544(Top 2%)514(Top 3%)514(Top 9%)
35K21.75 mi0.75 mi902+36847+36847+36756(Top 3%)707(Top 4%)707(Top 13%)
23M23.00 mi1.25 mi879+23825+22825+22701(Top 2%)662(Top 4%)662(Top 12%)
24M24.00 mi1.00 mi849+30796+29796+29733(Top 3%)688(Top 4%)688(Top 12%)
40K24.85 mi0.85 mi832+17778+18778+18760(Top 3%)711(Top 4%)711(Top 13%)
25.2M25.20 mi0.35 mi834-2780-2780-21095(Top 4%)1005(Top 6%)1005(Top 18%)
Finish26.22 mi1.02 mi811+23757+23757+23604(Top 2%)566(Top 4%)566(Top 10%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1321

Males

1254

M18-39

1254

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1403

Males

1331

M18-39

1331

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1321

Males

1254

M18-39

1254

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

986

Males

929

M18-39

929

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1149

Males

1086

M18-39

1086

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

861

Males

808

M18-39

808

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

608

Males

567

M18-39

567

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

554

Males

521

M18-39

521

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

544

Males

514

M18-39

514

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

756

Males

707

M18-39

707

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

701

Males

662

M18-39

662

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

733

Males

688

M18-39

688

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

760

Males

711

M18-39

711

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1095

Males

1005

M18-39

1005

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

604

Males

566

M18-39

566

Passing Analysis

Category:
Athletes Passed
1006
Passed By
85
Net Change
+921
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1732
5K → 10K19626+170#1732#1562
10K → 15K10712+95#1562#1467
15K → 20K1523+149#1467#1318
20K → Half148+6#1318#1312
Half → 25K1053+102#1312#1210
25K → 30K1511+150#1210#1060
30K → 20M740+74#1060#986
20M → 21M502+48#986#938
21M → 35K382+36#938#902
35K → 23M318+23#902#879
23M → 24M322+30#879#849
24M → 40K225+17#849#832
40K → 25.2M68-2#832#834
25.2M → Finish285+23#834#811
TOTALS100685+921
📊

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