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BOSTON MARATHON 2025

Kristofer Middleton

Bib: 8015•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 37%
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
21:26
Rank: #7058
Start → 5K
21:26 | 6:54/mi
10K· 6.21 mi
42:34
Rank: #6756 (+302)
5K → 10K
21:08 | 6:48/mi
15K· 9.32 mi
1:04:00
Rank: #6804 (-48)
10K → 15K
21:26 | 6:54/mi
20K· 12.43 mi
1:25:19
Rank: #6541 (+263)
15K → 20K
21:19 | 6:52/mi
Half· 13.11 mi
1:29:56
Rank: #6502 (+39)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:47:00
Rank: #6481 (+21)
Half → 25K
17:04 | 7:02/mi
30K· 18.64 mi
2:10:13
Rank: #6568 (-87)
25K → 30K
23:13 | 7:28/mi
20M
2:20:45
Rank: #6626 (-58)
30K → 20M
10:32 | 7:45/mi
21M
2:28:43
Rank: #6583 (+43)
20M → 21M
7:58 | 7:58/mi
35K· 21.75 mi
2:34:40
Rank: #6699 (-116)
21M → 35K
5:57 | 7:57/mi
23M
2:44:30
Rank: #6766 (-67)
35K → 23M
9:50 | 7:51/mi
24M
2:52:12
Rank: #6813 (-47)
23M → 24M
7:42 | 7:42/mi
40K· 24.85 mi
2:58:57
Rank: #6869 (-56)
24M → 40K
6:45 | 7:54/mi
25.2M
3:02:09
Rank: #6957 (-88)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:10:02
Rank: #7070 (-113)
25.2M → Finish
7:53 | 7:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:56
Pace6:52 /mi
2nd Half
Distance13.11 mi
Time1:40:06
Pace7:38 /mi
📊Positive Split: 11.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:3721:266:5421:26
6:54
-
10K
6.21 mi10:51:4542:346:5121:08
6:48
-0:06
15K
9.32 mi11:13:111:04:006:5221:26
6:54
+0:06
20K
12.43 mi11:34:301:25:196:5221:19
6:52
-0:02
Half
13.11 mi11:39:071:29:566:524:37
6:46
-0:06
25K
15.53 mi11:56:111:47:006:5317:04
7:02
+0:16
30K
18.64 mi12:19:242:10:136:5923:13
7:28
+0:26
20M
20.00 mi12:29:562:20:457:0210:32
7:45
+0:17
21M
21.00 mi12:37:542:28:437:057:58
7:58
+0:13
35K
21.75 mi12:43:512:34:407:075:57
7:57
-0:01
23M
23.00 mi12:53:412:44:307:099:50
7:51
-0:06
24M
24.00 mi13:01:232:52:127:117:42
7:42
-0:09
40K
24.85 mi13:08:082:58:577:126:45
7:54
+0:12
25.2M
25.20 mi13:11:203:02:097:143:12
9:17
+1:23
Finish
26.22 mi13:19:133:10:027:157:53
7:44
-1:33

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

6:46 /mi

Average Pace

7:15 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:00

56% of race

Time at Steady Pace

1:19:50

42% of race

Time at Slower Pace

3:12

2% of race

Average Pace: 7:15 /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 mi10:30:3721:266:5421:26
6:54
#7058
10K
6.21 mi10:51:4542:346:5121:08
6:48
#6756
15K
9.32 mi11:13:111:04:006:5221:26
6:54
#6804
20K
12.43 mi11:34:301:25:196:5221:19
6:52
#6541
Half
13.11 mi11:39:071:29:566:524:37
6:46
#6502
25K
15.53 mi11:56:111:47:006:5317:04
7:02
#6481
30K
18.64 mi12:19:242:10:136:5923:13
7:28
#6568
20M
20.00 mi12:29:562:20:457:0210:32
7:45
#6626
21M
21.00 mi12:37:542:28:437:057:58
7:58
#6583
35K
21.75 mi12:43:512:34:407:075:57
7:57
#6699
23M
23.00 mi12:53:412:44:307:099:50
7:51
#6766
24M
24.00 mi13:01:232:52:127:117:42
7:42
#6813
40K
24.85 mi13:08:082:58:577:126:45
7:54
#6869
25.2M
25.20 mi13:11:203:02:097:143:12
9:17
#6957
Finish
26.22 mi13:19:133:10:027:157:53
7:44
#7070
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi7058634563456938(Top 24%)6202(Top 39%)6202(Top 110%)
10K6.21 mi3.10 mi6756+3026103+2426103+2426399(Top 23%)5799(Top 36%)5799(Top 103%)
15K9.32 mi3.11 mi6804-486125-226125-226938(Top 24%)6202(Top 39%)6202(Top 110%)
20K12.43 mi3.11 mi6541+2635913+2125913+2125869(Top 21%)5329(Top 33%)5329(Top 94%)
Half13.11 mi0.68 mi6502+395875+385875+385815(Top 20%)5302(Top 33%)5302(Top 94%)
25K15.53 mi2.42 mi6481+215853+225853+226558(Top 23%)5803(Top 36%)5803(Top 103%)
30K18.64 mi3.11 mi6568-875887-345887-347538(Top 27%)6301(Top 39%)6301(Top 112%)
20M20.00 mi1.36 mi6626-585905-185905-188683(Top 31%)6824(Top 42%)6824(Top 121%)
21M21.00 mi1.00 mi6583+435849+565849+567144(Top 25%)5759(Top 36%)5759(Top 102%)
35K21.75 mi0.75 mi6699-1165922-735922-7311866(Top 42%)8236(Top 51%)8236(Top 146%)
23M23.00 mi1.25 mi6766-675934-125934-128928(Top 31%)6675(Top 41%)6675(Top 118%)
24M24.00 mi1.00 mi6813-475940-65940-69080(Top 32%)6682(Top 41%)6682(Top 118%)
40K24.85 mi0.85 mi6869-565953-135953-139375(Top 33%)6715(Top 42%)6715(Top 119%)
25.2M25.20 mi0.35 mi6957-885997-445997-4413248(Top 47%)8554(Top 53%)8554(Top 152%)
Finish26.22 mi1.02 mi7070-1136038-416038-4110919(Top 38%)7458(Top 46%)7458(Top 132%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6938

Males

6202

M18-39

6202

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6399

Males

5799

M18-39

5799

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6938

Males

6202

M18-39

6202

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5869

Males

5329

M18-39

5329

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5815

Males

5302

M18-39

5302

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6558

Males

5803

M18-39

5803

25K→30K

15.5 - 18.6 mi

Top 27%
×9stories
+181ft-148ft

Overall

7538

Males

6301

M18-39

6301

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8683

Males

6824

M18-39

6824

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

7144

Males

5759

M18-39

5759

21M→35K

21.0 - 21.8 mi

Top 42%
×7stories
+17ft-86ft

Overall

11866

Males

8236

M18-39

8236

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8928

Males

6675

M18-39

6675

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

9080

Males

6682

M18-39

6682

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9375

Males

6715

M18-39

6715

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13248

Males

8554

M18-39

8554

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10919

Males

7458

M18-39

7458

Passing Analysis

Category:
Athletes Passed
1533
Passed By
1545
Net Change
-12
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7058
5K → 10K36563+302#7058#6756
10K → 15K125173-48#6756#6804
15K → 20K28926+263#6804#6541
20K → Half489+39#6541#6502
Half → 25K141120+21#6502#6481
25K → 30K158245-87#6481#6568
30K → 20M70128-58#6568#6626
20M → 21M9350+43#6626#6583
21M → 35K22138-116#6583#6699
35K → 23M75142-67#6699#6766
23M → 24M54101-47#6766#6813
24M → 40K49105-56#6813#6869
40K → 25.2M795-88#6869#6957
25.2M → Finish37150-113#6957#7070
TOTALS15331545-12
📊

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