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BOSTON MARATHON 2025

Matthew Kiesz

Bib: 1341•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 32%
Gender (Male)
#0 / 16105
Top 45%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:33
Rank: #4727
Start → 5K
20:33 | 6:37/mi
10K· 6.21 mi
40:57
Rank: #4431 (+296)
5K → 10K
20:24 | 6:34/mi
15K· 9.32 mi
1:01:20
Rank: #4257 (+174)
10K → 15K
20:23 | 6:34/mi
20K· 12.43 mi
1:21:48
Rank: #4029 (+228)
15K → 20K
20:28 | 6:35/mi
Half· 13.11 mi
1:26:12
Rank: #3992 (+37)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:42:13
Rank: #3880 (+112)
Half → 25K
16:01 | 6:36/mi
30K· 18.64 mi
2:03:51
Rank: #3917 (-37)
25K → 30K
21:38 | 6:58/mi
20M
2:14:30
Rank: #4303 (-386)
30K → 20M
10:39 | 7:50/mi
21M
2:25:31
Rank: #5635 (-1332)
20M → 21M
11:01 | 11:01/mi
35K· 21.75 mi
2:32:35
Rank: #6124 (-489)
21M → 35K
7:04 | 9:27/mi
23M
2:44:49
Rank: #6878 (-754)
35K → 23M
12:14 | 9:46/mi
24M
2:55:11
Rank: #7703 (-825)
23M → 24M
10:22 | 10:22/mi
40K· 24.85 mi
3:03:18
Rank: #8170 (-467)
24M → 40K
8:07 | 9:30/mi
25.2M
3:06:47
Rank: #8332 (-162)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:16:21
Rank: #8966 (-634)
25.2M → Finish
9:34 | 9:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:12
Pace6:35 /mi
2nd Half
Distance13.11 mi
Time1:50:09
Pace8:24 /mi
📊Positive Split: 27.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:5120:336:3720:33
6:37
-
10K
6.21 mi10:46:1540:576:3520:24
6:34
-0:03
15K
9.32 mi11:06:381:01:206:3520:23
6:34
0:00
20K
12.43 mi11:27:061:21:486:3520:28
6:35
+0:01
Half
13.11 mi11:31:301:26:126:354:24
6:27
-0:08
25K
15.53 mi11:47:311:42:136:3516:01
6:36
+0:09
30K
18.64 mi12:09:092:03:516:3921:38
6:58
+0:22
20M
20.00 mi12:19:482:14:306:4310:39
7:50
+0:52
21M
21.00 mi12:30:492:25:316:5611:01
11:01
+3:11
35K
21.75 mi12:37:532:32:357:017:04
9:27
-1:34
23M
23.00 mi12:50:072:44:497:1012:14
9:46
+0:19
24M
24.00 mi13:00:292:55:117:1810:22
10:22
+0:36
40K
24.85 mi13:08:363:03:187:228:07
9:30
-0:52
25.2M
25.20 mi13:12:053:06:477:253:29
10:06
+0:36
Finish
26.22 mi13:21:393:16:217:309:34
9:23
-0:43

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

6:27 /mi

Average Pace

7:30 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:51

63% of race

Time at Steady Pace

10:39

5% of race

Time at Slower Pace

1:01:51

31% of race

Average Pace: 7:29 /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 mi10:25:5120:336:3720:33
6:37
#4727
10K
6.21 mi10:46:1540:576:3520:24
6:34
#4431
15K
9.32 mi11:06:381:01:206:3520:23
6:34
#4257
20K
12.43 mi11:27:061:21:486:3520:28
6:35
#4029
Half
13.11 mi11:31:301:26:126:354:24
6:27
#3992
25K
15.53 mi11:47:311:42:136:3516:01
6:36
#3880
30K
18.64 mi12:09:092:03:516:3921:38
6:58
#3917
20M
20.00 mi12:19:482:14:306:4310:39
7:50
#4303
21M
21.00 mi12:30:492:25:316:5611:01
11:01
#5635
35K
21.75 mi12:37:532:32:357:017:04
9:27
#6124
23M
23.00 mi12:50:072:44:497:1012:14
9:46
#6878
24M
24.00 mi13:00:292:55:117:1810:22
10:22
#7703
40K
24.85 mi13:08:363:03:187:228:07
9:30
#8170
25.2M
25.20 mi13:12:053:06:477:253:29
10:06
#8332
Finish
26.22 mi13:21:393:16:217:309:34
9:23
#8966
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4727443544353966(Top 14%)3738(Top 23%)3738(Top 66%)
10K6.21 mi3.10 mi4431+2964168+2674168+2674208(Top 15%)3958(Top 25%)3958(Top 70%)
15K9.32 mi3.11 mi4257+1744004+1644004+1643966(Top 14%)3738(Top 23%)3738(Top 66%)
20K12.43 mi3.11 mi4029+2283794+2103794+2103630(Top 13%)3429(Top 21%)3429(Top 61%)
Half13.11 mi0.68 mi3992+373760+343760+343428(Top 12%)3254(Top 20%)3254(Top 58%)
25K15.53 mi2.42 mi3880+1123656+1043656+1043517(Top 12%)3317(Top 21%)3317(Top 59%)
30K18.64 mi3.11 mi3917-373685-293685-294485(Top 16%)4103(Top 25%)4103(Top 73%)
20M20.00 mi1.36 mi4303-3864020-3354020-3359251(Top 33%)7127(Top 44%)7127(Top 126%)
21M21.00 mi1.00 mi5635-13325130-11105130-111021428(Top 75%)12697(Top 79%)12697(Top 225%)
35K21.75 mi0.75 mi6124-4895496-3665496-36620099(Top 71%)12002(Top 75%)12002(Top 213%)
23M23.00 mi1.25 mi6878-7546013-5176013-51719669(Top 69%)11743(Top 73%)11743(Top 208%)
24M24.00 mi1.00 mi7703-8256521-5086521-50822427(Top 79%)13009(Top 81%)13009(Top 231%)
40K24.85 mi0.85 mi8170-4676786-2656786-26518652(Top 66%)11137(Top 69%)11137(Top 197%)
25.2M25.20 mi0.35 mi8332-1626858-726858-7217381(Top 61%)10521(Top 65%)10521(Top 186%)
Finish26.22 mi1.02 mi8966-6347189-3317189-33120719(Top 73%)12146(Top 75%)12146(Top 215%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3966

Males

3738

M18-39

3738

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4208

Males

3958

M18-39

3958

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3966

Males

3738

M18-39

3738

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3630

Males

3429

M18-39

3429

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3428

Males

3254

M18-39

3254

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3517

Males

3317

M18-39

3317

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4485

Males

4103

M18-39

4103

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

9251

Males

7127

M18-39

7127

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

21428

Males

12697

M18-39

12697

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

20099

Males

12002

M18-39

12002

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

19669

Males

11743

M18-39

11743

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

22427

Males

13009

M18-39

13009

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18652

Males

11137

M18-39

11137

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17381

Males

10521

M18-39

10521

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2stories
+22ft-21ft

Overall

20719

Males

12146

M18-39

12146

Passing Analysis

Category:
Athletes Passed
1138
Passed By
5377
Net Change
-4239
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4727
5K → 10K34953+296#4727#4431
10K → 15K21036+174#4431#4257
15K → 20K24214+228#4257#4029
20K → Half425+37#4029#3992
Half → 25K13321+112#3992#3880
25K → 30K105142-37#3880#3917
30K → 20M11397-386#3917#4303
20M → 21M21334-1332#4303#5635
21M → 35K5494-489#5635#6124
35K → 23M11765-754#6124#6878
23M → 24M5830-825#6878#7703
24M → 40K12479-467#7703#8170
40K → 25.2M8170-162#8170#8332
25.2M → Finish3637-634#8332#8966
TOTALS11385377-4239
📊

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