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BOSTON MARATHON 2025

Mikael Mertz-Jepsen

Bib: 3548•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 17%
Division (M18-39)
#0 / 5642
Top 38%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:46
Rank: #2835
Start → 5K
19:46 | 6:22/mi
10K· 6.21 mi
39:41
Rank: #2955 (-120)
5K → 10K
19:55 | 6:25/mi
15K· 9.32 mi
59:32
Rank: #2907 (+48)
10K → 15K
19:51 | 6:23/mi
20K· 12.43 mi
1:20:33
Rank: #3366 (-459)
15K → 20K
21:01 | 6:46/mi
Half· 13.11 mi
1:24:52
Rank: #3325 (+41)
20K → Half
4:19 | 6:20/mi
25K· 15.53 mi
1:40:45
Rank: #3289 (+36)
Half → 25K
15:53 | 6:33/mi
30K· 18.64 mi
2:01:42
Rank: #3204 (+85)
25K → 30K
20:57 | 6:45/mi
20M
2:10:55
Rank: #3134 (+70)
30K → 20M
9:13 | 6:47/mi
21M
2:18:09
Rank: #3108 (+26)
20M → 21M
7:14 | 7:14/mi
35K· 21.75 mi
2:23:06
Rank: #3072 (+36)
21M → 35K
4:57 | 6:37/mi
23M
2:31:41
Rank: #3010 (+62)
35K → 23M
8:35 | 6:51/mi
24M
2:38:22
Rank: #2983 (+27)
23M → 24M
6:41 | 6:41/mi
40K· 24.85 mi
2:44:15
Rank: #2942 (+41)
24M → 40K
5:53 | 6:53/mi
25.2M
2:46:52
Rank: #2941 (+1)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
2:53:29
Rank: #2903 (+38)
25.2M → Finish
6:37 | 6:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:52
Pace6:28 /mi
2nd Half
Distance13.11 mi
Time1:28:37
Pace6:46 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5519:466:2219:46
6:22
-
10K
6.21 mi10:42:5039:416:2319:55
6:25
+0:03
15K
9.32 mi11:02:4159:326:2319:51
6:23
-0:02
20K
12.43 mi11:23:421:20:336:2921:01
6:46
+0:23
Half
13.11 mi11:28:011:24:526:284:19
6:20
-0:26
25K
15.53 mi11:43:541:40:456:2915:53
6:33
+0:13
30K
18.64 mi12:04:512:01:426:3220:57
6:45
+0:12
20M
20.00 mi12:14:042:10:556:339:13
6:47
+0:02
21M
21.00 mi12:21:182:18:096:357:14
7:14
+0:27
35K
21.75 mi12:26:152:23:066:354:57
6:37
-0:37
23M
23.00 mi12:34:502:31:416:368:35
6:51
+0:14
24M
24.00 mi12:41:312:38:226:366:41
6:41
-0:10
40K
24.85 mi12:47:242:44:156:375:53
6:53
+0:12
25.2M
25.20 mi12:50:012:46:526:372:37
7:35
+0:42
Finish
26.22 mi12:56:382:53:296:376:37
6:30
-1:05

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

6:20 /mi

Average Pace

6:37 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:38

94% of race

Time at Steady Pace

7:14

4% of race

Time at Slower Pace

2:37

2% of race

Average Pace: 6:37 /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 mi10:22:5519:466:2219:46
6:22
#2835
10K
6.21 mi10:42:5039:416:2319:55
6:25
#2955
15K
9.32 mi11:02:4159:326:2319:51
6:23
#2907
20K
12.43 mi11:23:421:20:336:2921:01
6:46
#3366
Half
13.11 mi11:28:011:24:526:284:19
6:20
#3325
25K
15.53 mi11:43:541:40:456:2915:53
6:33
#3289
30K
18.64 mi12:04:512:01:426:3220:57
6:45
#3204
20M
20.00 mi12:14:042:10:556:339:13
6:47
#3134
21M
21.00 mi12:21:182:18:096:357:14
7:14
#3108
35K
21.75 mi12:26:152:23:066:354:57
6:37
#3072
23M
23.00 mi12:34:502:31:416:368:35
6:51
#3010
24M
24.00 mi12:41:312:38:226:366:41
6:41
#2983
40K
24.85 mi12:47:242:44:156:375:53
6:53
#2942
25.2M
25.20 mi12:50:012:46:526:372:37
7:35
#2941
Finish
26.22 mi12:56:382:53:296:376:37
6:30
#2903
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2835269826982859(Top 10%)2724(Top 17%)2724(Top 48%)
10K6.21 mi3.10 mi2955-1202810-1122810-1123095(Top 11%)2944(Top 18%)2944(Top 52%)
15K9.32 mi3.11 mi2907+482771+392771+392859(Top 10%)2724(Top 17%)2724(Top 48%)
20K12.43 mi3.11 mi3366-4593195-4243195-4244934(Top 17%)4558(Top 28%)4558(Top 81%)
Half13.11 mi0.68 mi3325+413162+333162+332637(Top 9%)2520(Top 16%)2520(Top 45%)
25K15.53 mi2.42 mi3289+363127+353127+353143(Top 11%)2977(Top 18%)2977(Top 53%)
30K18.64 mi3.11 mi3204+853044+833044+833095(Top 11%)2904(Top 18%)2904(Top 51%)
20M20.00 mi1.36 mi3134+702971+732971+732819(Top 10%)2635(Top 16%)2635(Top 47%)
21M21.00 mi1.00 mi3108+262943+282943+283249(Top 11%)2987(Top 19%)2987(Top 53%)
35K21.75 mi0.75 mi3072+362909+342909+343014(Top 11%)2769(Top 17%)2769(Top 49%)
23M23.00 mi1.25 mi3010+622848+612848+612963(Top 10%)2705(Top 17%)2705(Top 48%)
24M24.00 mi1.00 mi2983+272822+262822+262875(Top 10%)2615(Top 16%)2615(Top 46%)
40K24.85 mi0.85 mi2942+412781+412781+413231(Top 11%)2883(Top 18%)2883(Top 51%)
25.2M25.20 mi0.35 mi2941+12778+32778+33742(Top 13%)3224(Top 20%)3224(Top 57%)
Finish26.22 mi1.02 mi2903+382740+382740+382773(Top 10%)2480(Top 15%)2480(Top 44%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2859

Males

2724

M18-39

2724

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3095

Males

2944

M18-39

2944

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2859

Males

2724

M18-39

2724

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4934

Males

4558

M18-39

4558

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2637

Males

2520

M18-39

2520

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3143

Males

2977

M18-39

2977

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3095

Males

2904

M18-39

2904

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2819

Males

2635

M18-39

2635

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3249

Males

2987

M18-39

2987

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3014

Males

2769

M18-39

2769

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2963

Males

2705

M18-39

2705

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2875

Males

2615

M18-39

2615

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3231

Males

2883

M18-39

2883

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3742

Males

3224

M18-39

3224

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2773

Males

2480

M18-39

2480

Passing Analysis

Category:
Athletes Passed
962
Passed By
1030
Net Change
-68
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2835
5K → 10K86206-120#2835#2955
10K → 15K11365+48#2955#2907
15K → 20K18477-459#2907#3366
20K → Half443+41#3366#3325
Half → 25K8852+36#3325#3289
25K → 30K14459+85#3289#3204
30K → 20M9323+70#3204#3134
20M → 21M5428+26#3134#3108
21M → 35K5014+36#3108#3072
35K → 23M9836+62#3072#3010
23M → 24M4821+27#3010#2983
24M → 40K5918+41#2983#2942
40K → 25.2M1312+1#2942#2941
25.2M → Finish5416+38#2941#2903
TOTALS9621030-68
📊

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