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BOSTON MARATHON 2025

Brian King

Bib: 5743•M

AZ

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 17%
Division (M18-39)
#0 / 5642
Top 39%
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
6:33/mi
20:20
↑ 97↓ 3451.5%
10K· 6.21 mi
6:35/mi
40:47
↑ 79↓ 1380.4%
15K· 9.32 mi
6:28/mi
1:00:53
↑ 67↓ 78
20K· 12.43 mi
6:34/mi
1:21:17
↑ 106↓ 860.1%
Half· 13.11 mi
6:27/mi
1:25:41
↑ 19↓ 370.5%
25K· 15.53 mi
6:34/mi
1:41:37
↑ 66↓ 880.2%
30K· 18.64 mi
6:42/mi
2:02:26
↑ 181↓ 1480.2%
20M
6:49/mi
2:11:42
↑ 64↓ 500.2%
21M
7:04/mi
2:18:46
↑ 106↓ 241.6%
35K· 21.75 mi
6:30/mi
2:23:38
↑ 17↓ 861.7%
23M
6:47/mi
2:32:08
↑ 23↓ 630.6%
24M
6:34/mi
2:38:42
↓ 821.3%
40K· 24.85 mi
6:42/mi
2:44:26
↓ 200.3%
25.2M
7:21/mi
2:46:58
↑ 13↓ 160.2%
Finish· 26.22 mi
6:34/mi
2:53:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:41
Pace6:32 /mi
2nd Half
Distance13.11 mi
Time1:27:59
Pace6:43 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:2020:206:3320:20
6:33
-
10K
6.21 mi10:45:4740:476:3420:27
6:35
+0:02
15K
9.32 mi11:05:531:00:536:3220:06
6:28
-0:07
20K
12.43 mi11:26:171:21:176:3220:24
6:34
+0:06
Half
13.11 mi11:30:411:25:416:324:24
6:27
-0:07
25K
15.53 mi11:46:371:41:376:3215:56
6:34
+0:07
30K
18.64 mi12:07:262:02:266:3420:49
6:42
+0:08
20M
20.00 mi12:16:422:11:426:359:16
6:49
+0:07
21M
21.00 mi12:23:462:18:466:367:04
7:04
+0:15
35K
21.75 mi12:28:382:23:386:364:52
6:30
-0:34
23M
23.00 mi12:37:082:32:086:378:30
6:47
+0:17
24M
24.00 mi12:43:422:38:426:376:34
6:34
-0:13
40K
24.85 mi12:49:262:44:266:375:44
6:42
+0:08
25.2M
25.20 mi12:51:582:46:586:382:32
7:21
+0:39
Finish
26.22 mi12:58:402:53:406:386:42
6:34
-0:47

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

6:38 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:08

99% of race

Time at Steady Pace

2:32

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:37 /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 mi10:25:2020:206:3320:20
6:33
#4152
10K
6.21 mi10:45:4740:476:3420:27
6:35
#4224
15K
9.32 mi11:05:531:00:536:3220:06
6:28
#3898
20K
12.43 mi11:26:171:21:176:3220:24
6:34
#3766
Half
13.11 mi11:30:411:25:416:324:24
6:27
#3746
25K
15.53 mi11:46:371:41:376:3215:56
6:34
#3641
30K
18.64 mi12:07:262:02:266:3420:49
6:42
#3439
20M
20.00 mi12:16:422:11:426:359:16
6:49
#3376
21M
21.00 mi12:23:462:18:466:367:04
7:04
#3279
35K
21.75 mi12:28:382:23:386:364:52
6:30
#3217
23M
23.00 mi12:37:082:32:086:378:30
6:47
#3132
24M
24.00 mi12:43:422:38:426:376:34
6:34
#3050
40K
24.85 mi12:49:262:44:266:375:44
6:42
#2986
25.2M
25.20 mi12:51:582:46:586:382:32
7:21
#2959
Finish
26.22 mi12:58:402:53:406:386:42
6:34
#2939
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4152391339133359(Top 12%)3186(Top 20%)3186(Top 56%)
10K6.21 mi3.10 mi4224-723973-603973-604297(Top 15%)4035(Top 25%)4035(Top 72%)
15K9.32 mi3.11 mi3898+3263676+2973676+2973359(Top 12%)3186(Top 20%)3186(Top 56%)
20K12.43 mi3.11 mi3766+1323554+1223554+1223500(Top 12%)3312(Top 21%)3312(Top 59%)
Half13.11 mi0.68 mi3746+203537+173537+173332(Top 12%)3158(Top 20%)3158(Top 56%)
25K15.53 mi2.42 mi3641+1053439+983439+983262(Top 11%)3088(Top 19%)3088(Top 55%)
30K18.64 mi3.11 mi3439+2023254+1853254+1852882(Top 10%)2720(Top 17%)2720(Top 48%)
20M20.00 mi1.36 mi3376+633194+603194+603022(Top 11%)2812(Top 17%)2812(Top 50%)
21M21.00 mi1.00 mi3279+973101+933101+932522(Top 9%)2348(Top 15%)2348(Top 42%)
35K21.75 mi0.75 mi3217+623039+623039+622467(Top 9%)2300(Top 14%)2300(Top 41%)
23M23.00 mi1.25 mi3132+852960+792960+792629(Top 9%)2421(Top 15%)2421(Top 43%)
24M24.00 mi1.00 mi3050+822883+772883+772327(Top 8%)2152(Top 13%)2152(Top 38%)
40K24.85 mi0.85 mi2986+642820+632820+632374(Top 8%)2171(Top 13%)2171(Top 38%)
25.2M25.20 mi0.35 mi2959+272795+252795+252693(Top 9%)2395(Top 15%)2395(Top 42%)
Finish26.22 mi1.02 mi2939+202775+202775+203177(Top 11%)2809(Top 17%)2809(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21story building
+97ft-345ft

Overall

3359

Males

3186

M18-39

3186

5K→10K

3.1 - 6.2 mi

Top 15%
×5story building
+79ft-138ft

Overall

4297

Males

4035

M18-39

4035

10K→15K

6.2 - 9.3 mi

Top 12%
×3story building
+67ft-78ft

Overall

3359

Males

3186

M18-39

3186

15K→20K

9.3 - 12.4 mi

Top 12%
×5story building
+106ft-86ft

Overall

3500

Males

3312

M18-39

3312

20K→Half

12.4 - 13.1 mi

Top 12%
×2story building
+19ft-37ft

Overall

3332

Males

3158

M18-39

3158

Half→25K

13.1 - 15.5 mi

Top 11%
×4story building
+66ft-88ft

Overall

3262

Males

3088

M18-39

3088

25K→30K

15.5 - 18.6 mi

Top 10%
×9story building
+181ft-148ft

Overall

2882

Males

2720

M18-39

2720

30K→20M

18.6 - 20.0 mi

Top 11%
×5story building
+64ft-50ft

Overall

3022

Males

2812

M18-39

2812

20M→21M

20.0 - 21.0 mi

Top 9%
×8story building
+106ft-24ft

Overall

2522

Males

2348

M18-39

2348

21M→35K

21.0 - 21.8 mi

Top 9%
×7story building
+17ft-86ft

Overall

2467

Males

2300

M18-39

2300

35K→23M

21.8 - 23.0 mi

Top 9%
×5story building
+23ft-63ft

Overall

2629

Males

2421

M18-39

2421

23M→24M

23.0 - 24.0 mi

Top 8%
×6story building
+12ft-82ft

Overall

2327

Males

2152

M18-39

2152

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2374

Males

2171

M18-39

2171

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2693

Males

2395

M18-39

2395

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2story building
+22ft-21ft

Overall

3177

Males

2809

M18-39

2809

Passing Analysis

Category:
Athletes Passed
1593
Passed By
380
Net Change
+1213
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4152
5K → 10K114186-72#4152#4224
10K → 15K3348+326#4224#3898
15K → 20K15927+132#3898#3766
20K → Half288+20#3766#3746
Half → 25K12419+105#3746#3641
25K → 30K22119+202#3641#3439
30K → 20M9431+63#3439#3376
20M → 21M10710+97#3376#3279
21M → 35K719+62#3279#3217
35K → 23M9914+85#3217#3132
23M → 24M9412+82#3132#3050
24M → 40K728+64#3050#2986
40K → 25.2M325+27#2986#2959
25.2M → Finish4424+20#2959#2939
TOTALS1593380+1213
📊

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