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BOSTON MARATHON 2025

Martin Dunkelgrun

Bib: 12351•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 41%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 43%
Division (M45-49)
#0 / 2386
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
7:16/mi
22:34
↑ 97↓ 3451.5%
10K· 6.21 mi
7:27/mi
45:43
↑ 79↓ 1380.4%
15K· 9.32 mi
7:27/mi
1:08:52
↑ 67↓ 78
20K· 12.43 mi
7:35/mi
1:32:25
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:37:32
↑ 19↓ 370.5%
25K· 15.53 mi
8:18/mi
1:57:40
↑ 66↓ 880.2%
30K· 18.64 mi
8:05/mi
2:22:48
↑ 181↓ 1480.2%
20M
8:05/mi
2:33:47
↑ 64↓ 500.2%
21M
8:35/mi
2:42:22
↑ 106↓ 241.6%
35K· 21.75 mi
7:28/mi
2:47:57
↑ 17↓ 861.7%
23M
8:06/mi
2:58:05
↑ 23↓ 630.6%
24M
8:00/mi
3:06:05
↓ 821.3%
40K· 24.85 mi
8:19/mi
3:13:12
↓ 200.3%
25.2M
9:49/mi
3:16:35
↑ 13↓ 160.2%
Finish· 26.22 mi
8:06/mi
3:24:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:32
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:47:18
Pace8:11 /mi
📊Positive Split: 10.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3622:347:1622:34
7:16
-
10K
6.21 mi11:14:4545:437:2123:09
7:27
+0:11
15K
9.32 mi11:37:541:08:527:2323:09
7:27
0:00
20K
12.43 mi12:01:271:32:257:2623:33
7:35
+0:08
Half
13.11 mi12:06:341:37:327:265:07
7:30
-0:05
25K
15.53 mi12:26:421:57:407:3420:08
8:18
+0:48
30K
18.64 mi12:51:502:22:487:4025:08
8:05
-0:13
20M
20.00 mi13:02:492:33:477:4110:59
8:05
0:00
21M
21.00 mi13:11:242:42:227:448:35
8:35
+0:30
35K
21.75 mi13:16:592:47:577:435:35
7:28
-1:07
23M
23.00 mi13:27:072:58:057:4510:08
8:06
+0:38
24M
24.00 mi13:35:073:06:057:458:00
8:00
-0:06
40K
24.85 mi13:42:143:13:127:467:07
8:19
+0:19
25.2M
25.20 mi13:45:373:16:357:483:23
9:49
+1:30
Finish
26.22 mi13:53:523:24:507:498:15
8:06
-1:43

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

7:16 /mi

Average Pace

7:49 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:07

50% of race

Time at Steady Pace

1:29:45

44% of race

Time at Slower Pace

11:58

6% of race

Average Pace: 7:49 /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 mi10:51:3622:347:1622:34
7:16
#10007
10K
6.21 mi11:14:4545:437:2123:09
7:27
#10841
15K
9.32 mi11:37:541:08:527:2323:09
7:27
#10955
20K
12.43 mi12:01:271:32:257:2623:33
7:35
#11080
Half
13.11 mi12:06:341:37:327:265:07
7:30
#11129
25K
15.53 mi12:26:421:57:407:3420:08
8:18
#11954
30K
18.64 mi12:51:502:22:487:4025:08
8:05
#11912
20M
20.00 mi13:02:492:33:477:4110:59
8:05
#11806
21M
21.00 mi13:11:242:42:227:448:35
8:35
#11744
35K
21.75 mi13:16:592:47:577:435:35
7:28
#11599
23M
23.00 mi13:27:072:58:057:4510:08
8:06
#11491
24M
24.00 mi13:35:073:06:057:458:00
8:00
#11441
40K
24.85 mi13:42:143:13:127:467:07
8:19
#11461
25.2M
25.20 mi13:45:373:16:357:483:23
9:49
#11547
Finish
26.22 mi13:53:523:24:507:498:15
8:06
#11627
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi100078173817311329(Top 40%)8752(Top 54%)8752(Top 367%)
10K6.21 mi3.10 mi10841-8348583-4108583-41011634(Top 41%)8971(Top 56%)8971(Top 376%)
15K9.32 mi3.11 mi10955-1148630-478630-4711329(Top 40%)8752(Top 54%)8752(Top 367%)
20K12.43 mi3.11 mi11080-1258666-368666-3611424(Top 40%)8698(Top 54%)8698(Top 365%)
Half13.11 mi0.68 mi11129-498682-168682-1611642(Top 41%)8852(Top 55%)8852(Top 371%)
25K15.53 mi2.42 mi11954-8259026-3449026-34415928(Top 56%)10606(Top 66%)10606(Top 445%)
30K18.64 mi3.11 mi11912+428935+918935+9112014(Top 42%)8683(Top 54%)8683(Top 364%)
20M20.00 mi1.36 mi11806+1068851+848851+8410970(Top 39%)8018(Top 50%)8018(Top 336%)
21M21.00 mi1.00 mi11744+628782+698782+6910975(Top 39%)7862(Top 49%)7862(Top 330%)
35K21.75 mi0.75 mi11599+1458682+1008682+1008371(Top 29%)6535(Top 41%)6535(Top 274%)
23M23.00 mi1.25 mi11491+1088584+988584+9810692(Top 38%)7587(Top 47%)7587(Top 318%)
24M24.00 mi1.00 mi11441+508531+538531+5311223(Top 40%)7776(Top 48%)7776(Top 326%)
40K24.85 mi0.85 mi11461-208498+338498+3312269(Top 43%)8176(Top 51%)8176(Top 343%)
25.2M25.20 mi0.35 mi11547-868533-358533-3516062(Top 57%)9887(Top 61%)9887(Top 414%)
Finish26.22 mi1.02 mi11627-808529+48529+413531(Top 48%)8778(Top 55%)8778(Top 368%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11329

Males

8752

M45-49

8752

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

11634

Males

8971

M45-49

8971

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11329

Males

8752

M45-49

8752

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11424

Males

8698

M45-49

8698

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11642

Males

8852

M45-49

8852

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

15928

Males

10606

M45-49

10606

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

12014

Males

8683

M45-49

8683

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10970

Males

8018

M45-49

8018

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

10975

Males

7862

M45-49

7862

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

8371

Males

6535

M45-49

6535

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10692

Males

7587

M45-49

7587

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11223

Males

7776

M45-49

7776

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

12269

Males

8176

M45-49

8176

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16062

Males

9887

M45-49

9887

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

13531

Males

8778

M45-49

8778

Passing Analysis

Category:
Athletes Passed
1496
Passed By
3115
Net Change
-1620
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10007
5K → 10K43876-834#10007#10841
10K → 15K137251-114#10841#10955
15K → 20K139264-125#10955#11080
20K → Half1968-49#11080#11129
Half → 25K45870-825#11129#11954
25K → 30K249207+42#11954#11912
30K → 20M16458+106#11912#11806
20M → 21M13674+62#11806#11744
21M → 35K1516+145#11744#11599
35K → 23M15244+108#11599#11491
23M → 24M11060+50#11491#11441
24M → 40K7191-20#11441#11461
40K → 25.2M16102-86#11461#11547
25.2M → Finish64144-80#11547#11627
TOTALS14963115-1620
📊

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