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BOSTON MARATHON 2025

Michael Maelzer

Bib: 5216•M

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 17%
Gender (Male)
#0 / 16105
Top 28%
Masters (Masters Men)
#0 / 10463
Top 14%
Division (M40-44)
#0 / 2247
Top 35%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:12
Rank: #6486
Start → 5K
21:12 | 6:49/mi
10K· 6.21 mi
42:35
Rank: #6770 (-284)
5K → 10K
21:23 | 6:53/mi
15K· 9.32 mi
1:03:41
Rank: #6496 (+274)
10K → 15K
21:06 | 6:47/mi
20K· 12.43 mi
1:25:15
Rank: #6493 (+3)
15K → 20K
21:34 | 6:56/mi
Half· 13.11 mi
1:29:47
Rank: #6395 (+98)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:46:10
Rank: #6011 (+384)
Half → 25K
16:23 | 6:45/mi
30K· 18.64 mi
2:07:48
Rank: #5629 (+382)
25K → 30K
21:38 | 6:58/mi
20M
2:17:16
Rank: #5473 (+156)
30K → 20M
9:28 | 6:58/mi
21M
2:24:34
Rank: #5302 (+171)
20M → 21M
7:18 | 7:18/mi
35K· 21.75 mi
2:29:39
Rank: #5234 (+68)
21M → 35K
5:05 | 6:48/mi
23M
2:38:30
Rank: #5134 (+100)
35K → 23M
8:51 | 7:04/mi
24M
2:45:26
Rank: #5073 (+61)
23M → 24M
6:56 | 6:56/mi
40K· 24.85 mi
2:51:22
Rank: #4985 (+88)
24M → 40K
5:56 | 6:56/mi
25.2M
2:53:55
Rank: #4931 (+54)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
3:00:46
Rank: #4868 (+63)
25.2M → Finish
6:51 | 6:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:47
Pace6:51 /mi
2nd Half
Distance13.11 mi
Time1:30:59
Pace6:56 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:3121:126:4921:12
6:49
-
10K
6.21 mi10:47:5442:356:5121:23
6:53
+0:04
15K
9.32 mi11:09:001:03:416:5021:06
6:47
-0:06
20K
12.43 mi11:30:341:25:156:5221:34
6:56
+0:09
Half
13.11 mi11:35:061:29:476:514:32
6:39
-0:17
25K
15.53 mi11:51:291:46:106:5016:23
6:45
+0:06
30K
18.64 mi12:13:072:07:486:5121:38
6:58
+0:13
20M
20.00 mi12:22:352:17:166:529:28
6:58
0:00
21M
21.00 mi12:29:532:24:346:537:18
7:18
+0:20
35K
21.75 mi12:34:582:29:396:535:05
6:48
-0:30
23M
23.00 mi12:43:492:38:306:538:51
7:04
+0:16
24M
24.00 mi12:50:452:45:266:546:56
6:56
-0:08
40K
24.85 mi12:56:412:51:226:545:56
6:56
0:00
25.2M
25.20 mi12:59:142:53:556:542:33
7:24
+0:28
Finish
26.22 mi13:06:053:00:466:546:51
6:43
-0:41

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

6:39 /mi

Average Pace

6:54 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:13

99% of race

Time at Steady Pace

2:33

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:54 /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 mi10:26:3121:126:4921:12
6:49
#6486
10K
6.21 mi10:47:5442:356:5121:23
6:53
#6770
15K
9.32 mi11:09:001:03:416:5021:06
6:47
#6496
20K
12.43 mi11:30:341:25:156:5221:34
6:56
#6493
Half
13.11 mi11:35:061:29:476:514:32
6:39
#6395
25K
15.53 mi11:51:291:46:106:5016:23
6:45
#6011
30K
18.64 mi12:13:072:07:486:5121:38
6:58
#5629
20M
20.00 mi12:22:352:17:166:529:28
6:58
#5473
21M
21.00 mi12:29:532:24:346:537:18
7:18
#5302
35K
21.75 mi12:34:582:29:396:535:05
6:48
#5234
23M
23.00 mi12:43:492:38:306:538:51
7:04
#5134
24M
24.00 mi12:50:452:45:266:546:56
6:56
#5073
40K
24.85 mi12:56:412:51:226:545:56
6:56
#4985
25.2M
25.20 mi12:59:142:53:556:542:33
7:24
#4931
Finish
26.22 mi13:06:053:00:466:546:51
6:43
#4868
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6486590359035985(Top 21%)5439(Top 34%)5439(Top 242%)
10K6.21 mi3.10 mi6770-2846113-2106113-2107093(Top 25%)6345(Top 39%)6345(Top 282%)
15K9.32 mi3.11 mi6496+2745885+2285885+2285985(Top 21%)5439(Top 34%)5439(Top 242%)
20K12.43 mi3.11 mi6493+35873+125873+126496(Top 23%)5818(Top 36%)5818(Top 259%)
Half13.11 mi0.68 mi6395+985795+785795+784759(Top 17%)4419(Top 27%)4419(Top 197%)
25K15.53 mi2.42 mi6011+3845468+3275468+3274532(Top 16%)4188(Top 26%)4188(Top 186%)
30K18.64 mi3.11 mi5629+3825143+3255143+3254471(Top 16%)4089(Top 25%)4089(Top 182%)
20M20.00 mi1.36 mi5473+1565006+1375006+1373892(Top 14%)3575(Top 22%)3575(Top 159%)
21M21.00 mi1.00 mi5302+1714849+1574849+1573621(Top 13%)3310(Top 21%)3310(Top 147%)
35K21.75 mi0.75 mi5234+684792+574792+574066(Top 14%)3641(Top 23%)3641(Top 162%)
23M23.00 mi1.25 mi5134+1004696+964696+964143(Top 15%)3687(Top 23%)3687(Top 164%)
24M24.00 mi1.00 mi5073+614631+654631+654249(Top 15%)3730(Top 23%)3730(Top 166%)
40K24.85 mi0.85 mi4985+884550+814550+813557(Top 13%)3153(Top 20%)3153(Top 140%)
25.2M25.20 mi0.35 mi4931+544499+514499+512917(Top 10%)2596(Top 16%)2596(Top 116%)
Finish26.22 mi1.02 mi4868+634443+564443+563999(Top 14%)3432(Top 21%)3432(Top 153%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5985

Males

5439

M40-44

5439

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

7093

Males

6345

M40-44

6345

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5985

Males

5439

M40-44

5439

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6496

Males

5818

M40-44

5818

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4759

Males

4419

M40-44

4419

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4532

Males

4188

M40-44

4188

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4471

Males

4089

M40-44

4089

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3892

Males

3575

M40-44

3575

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3621

Males

3310

M40-44

3310

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

4066

Males

3641

M40-44

3641

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4143

Males

3687

M40-44

3687

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4249

Males

3730

M40-44

3730

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3557

Males

3153

M40-44

3153

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2917

Males

2596

M40-44

2596

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3999

Males

3432

M40-44

3432

Passing Analysis

Category:
Athletes Passed
2327
Passed By
709
Net Change
+1618
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6486
5K → 10K98382-284#6486#6770
10K → 15K31945+274#6770#6496
15K → 20K141138+3#6496#6493
20K → Half991+98#6493#6395
Half → 25K3873+384#6395#6011
25K → 30K40725+382#6011#5629
30K → 20M1626+156#5629#5473
20M → 21M18211+171#5473#5302
21M → 35K7911+68#5302#5234
35K → 23M13232+100#5234#5134
23M → 24M8423+61#5134#5073
24M → 40K924+88#5073#4985
40K → 25.2M595+54#4985#4931
25.2M → Finish8623+63#4931#4868
TOTALS2327709+1618
📊

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