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BOSTON MARATHON 2025

Carsten Kreuz

Bib: 12770•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
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
8:12/mi
25:28
↑ 97↓ 3451.5%
10K· 6.21 mi
8:33/mi
52:02
↑ 79↓ 1380.4%
15K· 9.32 mi
8:34/mi
1:18:38
↑ 67↓ 78
20K· 12.43 mi
8:36/mi
1:45:21
↑ 106↓ 860.1%
Half· 13.11 mi
8:26/mi
1:51:06
↑ 19↓ 370.5%
25K· 15.53 mi
8:31/mi
2:11:44
↑ 66↓ 880.2%
30K· 18.64 mi
8:58/mi
2:39:37
↑ 181↓ 1480.2%
20M
8:50/mi
2:51:37
↑ 64↓ 500.2%
21M
9:03/mi
3:00:40
↑ 106↓ 241.6%
35K· 21.75 mi
8:12/mi
3:06:48
↑ 17↓ 861.7%
23M
8:20/mi
3:17:14
↑ 23↓ 630.6%
24M
8:06/mi
3:25:20
↓ 821.3%
40K· 24.85 mi
8:16/mi
3:32:24
↓ 200.3%
25.2M
8:51/mi
3:35:27
↑ 13↓ 160.2%
Finish· 26.22 mi
8:02/mi
3:43:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:06
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time1:52:32
Pace8:35 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0425:288:1225:28
8:12
-
10K
6.21 mi11:19:3852:028:2226:34
8:33
+0:21
15K
9.32 mi11:46:141:18:388:2626:36
8:34
+0:01
20K
12.43 mi12:12:571:45:218:2926:43
8:36
+0:02
Half
13.11 mi12:18:421:51:068:285:45
8:26
-0:10
25K
15.53 mi12:39:202:11:448:2920:38
8:31
+0:05
30K
18.64 mi13:07:132:39:378:3427:53
8:58
+0:27
20M
20.00 mi13:19:132:51:378:3512:00
8:50
-0:08
21M
21.00 mi13:28:163:00:408:369:03
9:03
+0:13
35K
21.75 mi13:34:243:06:488:356:08
8:12
-0:51
23M
23.00 mi13:44:503:17:148:3510:26
8:20
+0:08
24M
24.00 mi13:52:563:25:208:338:06
8:06
-0:14
40K
24.85 mi14:00:003:32:248:337:04
8:16
+0:10
25.2M
25.20 mi14:03:033:35:278:333:03
8:51
+0:35
Finish
26.22 mi14:11:143:43:388:328:11
8:02
-0:49

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

8:02 /mi

Average Pace

8:32 /mi

Slowest Pace

9:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:39

82% of race

Time at Steady Pace

39:59

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:32 /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 mi10:53:0425:288:1225:28
8:12
#18065
10K
6.21 mi11:19:3852:028:2226:34
8:33
#19079
15K
9.32 mi11:46:141:18:388:2626:36
8:34
#19260
20K
12.43 mi12:12:571:45:218:2926:43
8:36
#19128
Half
13.11 mi12:18:421:51:068:285:45
8:26
#19092
25K
15.53 mi12:39:202:11:448:2920:38
8:31
#18793
30K
18.64 mi13:07:132:39:378:3427:53
8:58
#18519
20M
20.00 mi13:19:132:51:378:3512:00
8:50
#18309
21M
21.00 mi13:28:163:00:408:369:03
9:03
#18029
35K
21.75 mi13:34:243:06:488:356:08
8:12
#17847
23M
23.00 mi13:44:503:17:148:3510:26
8:20
#17511
24M
24.00 mi13:52:563:25:208:338:06
8:06
#17253
40K
24.85 mi14:00:003:32:248:337:04
8:16
#17061
25.2M
25.20 mi14:03:033:35:278:333:03
8:51
#16951
Finish
26.22 mi14:11:143:43:388:328:11
8:02
#16783
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi18065116251162519692(Top 69%)12365(Top 77%)12365(Top 619%)
10K6.21 mi3.10 mi19079-101412074-44912074-44920084(Top 71%)12514(Top 78%)12514(Top 627%)
15K9.32 mi3.11 mi19260-18112163-8912163-8919692(Top 69%)12365(Top 77%)12365(Top 619%)
20K12.43 mi3.11 mi19128+13212097+6612097+6618831(Top 66%)11963(Top 74%)11963(Top 599%)
Half13.11 mi0.68 mi19092+3612076+2112076+2118684(Top 66%)11893(Top 74%)11893(Top 596%)
25K15.53 mi2.42 mi18793+29911945+13111945+13117252(Top 61%)11202(Top 70%)11202(Top 561%)
30K18.64 mi3.11 mi18519+27411796+14911796+14917541(Top 62%)11163(Top 69%)11163(Top 559%)
20M20.00 mi1.36 mi18309+21011668+12811668+12815830(Top 56%)10302(Top 64%)10302(Top 516%)
21M21.00 mi1.00 mi18029+28011526+14211526+14213796(Top 49%)9248(Top 57%)9248(Top 463%)
35K21.75 mi0.75 mi17847+18211437+8911437+8913618(Top 48%)9111(Top 57%)9111(Top 456%)
23M23.00 mi1.25 mi17511+33611231+20611231+20612237(Top 43%)8345(Top 52%)8345(Top 418%)
24M24.00 mi1.00 mi17253+25811093+13811093+13811899(Top 42%)8125(Top 50%)8125(Top 407%)
40K24.85 mi0.85 mi17061+19210993+10010993+10011961(Top 42%)8042(Top 50%)8042(Top 403%)
25.2M25.20 mi0.35 mi16951+11010930+6310930+6310915(Top 38%)7468(Top 46%)7468(Top 374%)
Finish26.22 mi1.02 mi16783+16810843+8710843+8713070(Top 46%)8571(Top 53%)8571(Top 429%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

19692

Males

12365

M50-54

12365

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

20084

Males

12514

M50-54

12514

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

19692

Males

12365

M50-54

12365

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

18831

Males

11963

M50-54

11963

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18684

Males

11893

M50-54

11893

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

17252

Males

11202

M50-54

11202

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

17541

Males

11163

M50-54

11163

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

15830

Males

10302

M50-54

10302

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13796

Males

9248

M50-54

9248

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

13618

Males

9111

M50-54

9111

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

12237

Males

8345

M50-54

8345

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11899

Males

8125

M50-54

8125

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11961

Males

8042

M50-54

8042

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10915

Males

7468

M50-54

7468

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

13070

Males

8571

M50-54

8571

Passing Analysis

Category:
Athletes Passed
2982
Passed By
1700
Net Change
+1282
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18065
5K → 10K491063-1014#18065#19079
10K → 15K141322-181#19079#19260
15K → 20K248116+132#19260#19128
20K → Half5519+36#19128#19092
Half → 25K32324+299#19092#18793
25K → 30K376102+274#18793#18519
30K → 20M23121+210#18519#18309
20M → 21M2844+280#18309#18029
21M → 35K1875+182#18029#17847
35K → 23M3371+336#17847#17511
23M → 24M2613+258#17511#17253
24M → 40K1964+192#17253#17061
40K → 25.2M1100+110#17061#16951
25.2M → Finish18416+168#16951#16783
TOTALS29821700+1282
📊

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