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BOSTON MARATHON 2025

Matt Karl

Bib: 4089•M

FL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 29%
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
19:50
Rank: #2998
Start → 5K
19:50 | 6:23/mi
10K· 6.21 mi
39:42
Rank: #2980 (+18)
5K → 10K
19:52 | 6:24/mi
15K· 9.32 mi
59:25
Rank: #2844 (+136)
10K → 15K
19:43 | 6:21/mi
20K· 12.43 mi
1:19:22
Rank: #2776 (+68)
15K → 20K
19:57 | 6:25/mi
Half· 13.11 mi
1:23:43
Rank: #2780 (-4)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:39:23
Rank: #2731 (+49)
Half → 25K
15:40 | 6:28/mi
30K· 18.64 mi
2:00:28
Rank: #2804 (-73)
25K → 30K
21:05 | 6:47/mi
20M
2:10:29
Rank: #3015 (-211)
30K → 20M
10:01 | 7:22/mi
21M
2:18:48
Rank: #3292 (-277)
20M → 21M
8:19 | 8:19/mi
35K· 21.75 mi
2:24:59
Rank: #3606 (-314)
21M → 35K
6:11 | 8:16/mi
23M
2:35:40
Rank: #4146 (-540)
35K → 23M
10:41 | 8:32/mi
24M
2:43:50
Rank: #4521 (-375)
23M → 24M
8:10 | 8:10/mi
40K· 24.85 mi
2:50:49
Rank: #4811 (-290)
24M → 40K
6:59 | 8:10/mi
25.2M
2:53:53
Rank: #4920 (-109)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:01:57
Rank: #5098 (-178)
25.2M → Finish
8:04 | 7:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:43
Pace6:23 /mi
2nd Half
Distance13.11 mi
Time1:38:14
Pace7:30 /mi
📊Positive Split: 17.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:1719:506:2319:50
6:23
-
10K
6.21 mi10:42:0939:426:2319:52
6:24
+0:01
15K
9.32 mi11:01:5259:256:2219:43
6:21
-0:03
20K
12.43 mi11:21:491:19:226:2319:57
6:25
+0:04
Half
13.11 mi11:26:101:23:436:234:21
6:23
-0:02
25K
15.53 mi11:41:501:39:236:2415:40
6:28
+0:05
30K
18.64 mi12:02:552:00:286:2821:05
6:47
+0:19
20M
20.00 mi12:12:562:10:296:3110:01
7:22
+0:35
21M
21.00 mi12:21:152:18:486:378:19
8:19
+0:57
35K
21.75 mi12:27:262:24:596:406:11
8:16
-0:03
23M
23.00 mi12:38:072:35:406:4610:41
8:32
+0:16
24M
24.00 mi12:46:172:43:506:508:10
8:10
-0:22
40K
24.85 mi12:53:162:50:496:526:59
8:10
0:00
25.2M
25.20 mi12:56:202:53:536:543:04
8:54
+0:44
Finish
26.22 mi13:04:243:01:576:578:04
7:55
-0:59

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

6:21 /mi

Average Pace

6:57 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:28

66% of race

Time at Steady Pace

10:01

6% of race

Time at Slower Pace

51:28

28% of race

Average Pace: 6:56 /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 mi10:22:1719:506:2319:50
6:23
#2998
10K
6.21 mi10:42:0939:426:2319:52
6:24
#2980
15K
9.32 mi11:01:5259:256:2219:43
6:21
#2844
20K
12.43 mi11:21:491:19:226:2319:57
6:25
#2776
Half
13.11 mi11:26:101:23:436:234:21
6:23
#2780
25K
15.53 mi11:41:501:39:236:2415:40
6:28
#2731
30K
18.64 mi12:02:552:00:286:2821:05
6:47
#2804
20M
20.00 mi12:12:562:10:296:3110:01
7:22
#3015
21M
21.00 mi12:21:152:18:486:378:19
8:19
#3292
35K
21.75 mi12:27:262:24:596:406:11
8:16
#3606
23M
23.00 mi12:38:072:35:406:4610:41
8:32
#4146
24M
24.00 mi12:46:172:43:506:508:10
8:10
#4521
40K
24.85 mi12:53:162:50:496:526:59
8:10
#4811
25.2M
25.20 mi12:56:202:53:536:543:04
8:54
#4920
Finish
26.22 mi13:04:243:01:576:578:04
7:55
#5098
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2998285128512614(Top 9%)2494(Top 15%)2494(Top 44%)
10K6.21 mi3.10 mi2980+182834+172834+173006(Top 11%)2862(Top 18%)2862(Top 51%)
15K9.32 mi3.11 mi2844+1362712+1222712+1222614(Top 9%)2494(Top 15%)2494(Top 44%)
20K12.43 mi3.11 mi2776+682647+652647+652639(Top 9%)2512(Top 16%)2512(Top 45%)
Half13.11 mi0.68 mi2780-42651-42651-42934(Top 10%)2801(Top 17%)2801(Top 50%)
25K15.53 mi2.42 mi2731+492605+462605+462683(Top 9%)2551(Top 16%)2551(Top 45%)
30K18.64 mi3.11 mi2804-732672-672672-673358(Top 12%)3136(Top 19%)3136(Top 56%)
20M20.00 mi1.36 mi3015-2112864-1922864-1926176(Top 22%)5307(Top 33%)5307(Top 94%)
21M21.00 mi1.00 mi3292-2773114-2503114-2509274(Top 33%)6958(Top 43%)6958(Top 123%)
35K21.75 mi0.75 mi3606-3143391-2773391-27713970(Top 49%)9255(Top 57%)9255(Top 164%)
23M23.00 mi1.25 mi4146-5403855-4643855-46413479(Top 47%)8915(Top 55%)8915(Top 158%)
24M24.00 mi1.00 mi4521-3754167-3124167-31212292(Top 43%)8300(Top 52%)8300(Top 147%)
40K24.85 mi0.85 mi4811-2904408-2414408-24111303(Top 40%)7695(Top 48%)7695(Top 136%)
25.2M25.20 mi0.35 mi4920-1094491-834491-8311082(Top 39%)7488(Top 46%)7488(Top 133%)
Finish26.22 mi1.02 mi5098-1784630-1394630-13912233(Top 43%)8136(Top 51%)8136(Top 144%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2614

Males

2494

M18-39

2494

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3006

Males

2862

M18-39

2862

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2614

Males

2494

M18-39

2494

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2639

Males

2512

M18-39

2512

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2934

Males

2801

M18-39

2801

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2683

Males

2551

M18-39

2551

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3358

Males

3136

M18-39

3136

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

6176

Males

5307

M18-39

5307

20M→21M

20.0 - 21.0 mi

Top 33%
×8stories
+106ft-24ft

Overall

9274

Males

6958

M18-39

6958

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

13970

Males

9255

M18-39

9255

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

13479

Males

8915

M18-39

8915

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

12292

Males

8300

M18-39

8300

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11303

Males

7695

M18-39

7695

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

11082

Males

7488

M18-39

7488

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

12233

Males

8136

M18-39

8136

Passing Analysis

Category:
Athletes Passed
680
Passed By
2780
Net Change
-2100
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2998
5K → 10K138120+18#2998#2980
10K → 15K16832+136#2980#2844
15K → 20K11446+68#2844#2776
20K → Half812-4#2776#2780
Half → 25K9041+49#2780#2731
25K → 30K81154-73#2731#2804
30K → 20M18229-211#2804#3015
20M → 21M5282-277#3015#3292
21M → 35K6320-314#3292#3606
35K → 23M13553-540#3606#4146
23M → 24M12387-375#4146#4521
24M → 40K14304-290#4521#4811
40K → 25.2M9118-109#4811#4920
25.2M → Finish4182-178#4920#5098
TOTALS6802780-2100
📊

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