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BOSTON MARATHON 2025

Isaiah King

Bib: 1188•M

VA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 5%
Division (M18-39)
#0 / 5642
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:40
Rank: #1101
Start → 5K
6:00/mi
18:40 split
10K· 6.21 mi
37:39
Rank: #1254 (-153)
5K → 10K
6:07/mi
18:59 split
15K· 9.32 mi
56:28
Rank: #1229 (+25)
10K → 15K
6:03/mi
18:49 split
20K· 12.43 mi
1:15:33
Rank: #1231 (-2)
15K → 20K
6:09/mi
19:05 split
Half· 13.11 mi
1:19:37
Rank: #1215 (+16)
20K → Half
5:58/mi
4:04 split
25K· 15.53 mi
1:35:05
Rank: #1354 (-139)
Half → 25K
6:23/mi
15:28 split
30K· 18.64 mi
1:54:48
Rank: #1328 (+26)
25K → 30K
6:21/mi
19:43 split
20M
2:03:07
Rank: #1248 (+80)
30K → 20M
6:07/mi
8:19 split
21M
2:09:33
Rank: #1171 (+77)
20M → 21M
6:26/mi
6:26 split
35K· 21.75 mi
2:13:59
Rank: #1120 (+51)
21M → 35K
5:56/mi
4:26 split
23M
2:21:42
Rank: #1040 (+80)
35K → 23M
6:10/mi
7:43 split
24M
2:27:38
Rank: #994 (+46)
23M → 24M
5:56/mi
5:56 split
40K· 24.85 mi
2:32:48
Rank: #961 (+33)
24M → 40K
6:03/mi
5:10 split
25.2M
2:35:06
Rank: #948 (+13)
40K → 25.2M
6:40/mi
2:18 split
Finish· 26.22 mi
2:40:57
Rank: #898 (+50)
25.2M → Finish
5:44/mi
5:51 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:37
Pace6:04 /mi
2nd Half
Distance13.11 mi
Time1:21:20
Pace6:12 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:4818:406:0018:40
6:00
-
10K
6.21 mi10:37:4737:396:0418:59
6:07
+0:07
15K
9.32 mi10:56:3656:286:0318:49
6:03
-0:04
20K
12.43 mi11:15:411:15:336:0519:05
6:09
+0:06
Half
13.11 mi11:19:451:19:376:044:04
5:58
-0:11
25K
15.53 mi11:35:131:35:056:0715:28
6:23
+0:25
30K
18.64 mi11:54:561:54:486:1019:43
6:21
-0:02
20M
20.00 mi12:03:152:03:076:098:19
6:07
-0:14
21M
21.00 mi12:09:412:09:336:106:26
6:26
+0:19
35K
21.75 mi12:14:072:13:596:104:26
5:56
-0:30
23M
23.00 mi12:21:502:21:426:107:43
6:10
+0:14
24M
24.00 mi12:27:462:27:386:095:56
5:56
-0:14
40K
24.85 mi12:32:562:32:486:095:10
6:03
+0:07
25.2M
25.20 mi12:35:142:35:066:092:18
6:40
+0:37
Finish
26.22 mi12:41:052:40:576:095:51
5:44
-0:56

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

5:44 /mi

Average Pace

6:09 /mi

Slowest Pace

6:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:02

73% of race

Time at Steady Pace

43:55

27% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:08 /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 mi10:18:4818:406:0018:40
6:00
#1101
10K
6.21 mi10:37:4737:396:0418:59
6:07
#1254
15K
9.32 mi10:56:3656:286:0318:49
6:03
#1229
20K
12.43 mi11:15:411:15:336:0519:05
6:09
#1231
Half
13.11 mi11:19:451:19:376:044:04
5:58
#1215
25K
15.53 mi11:35:131:35:056:0715:28
6:23
#1354
30K
18.64 mi11:54:561:54:486:1019:43
6:21
#1328
20M
20.00 mi12:03:152:03:076:098:19
6:07
#1248
21M
21.00 mi12:09:412:09:336:106:26
6:26
#1171
35K
21.75 mi12:14:072:13:596:104:26
5:56
#1120
23M
23.00 mi12:21:502:21:426:107:43
6:10
#1040
24M
24.00 mi12:27:462:27:386:095:56
5:56
#994
40K
24.85 mi12:32:562:32:486:095:10
6:03
#961
25.2M
25.20 mi12:35:142:35:066:092:18
6:40
#948
Finish
26.22 mi12:41:052:40:576:095:51
5:44
#898
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1101104210421211(Top 4%)1149(Top 7%)1149(Top 20%)
10K6.21 mi3.10 mi1254-1531191-1491191-1491494(Top 5%)1417(Top 9%)1417(Top 25%)
15K9.32 mi3.11 mi1229+251166+251166+251211(Top 4%)1149(Top 7%)1149(Top 20%)
20K12.43 mi3.11 mi1231-2116611661322(Top 5%)1251(Top 8%)1251(Top 22%)
Half13.11 mi0.68 mi1215+161151+151151+151004(Top 4%)951(Top 6%)951(Top 17%)
25K15.53 mi2.42 mi1354-1391283-1321283-1322233(Top 8%)2123(Top 13%)2123(Top 38%)
30K18.64 mi3.11 mi1328+261253+301253+301348(Top 5%)1273(Top 8%)1273(Top 23%)
20M20.00 mi1.36 mi1248+801178+751178+75575(Top 2%)541(Top 3%)541(Top 10%)
21M21.00 mi1.00 mi1171+771103+751103+75570(Top 2%)538(Top 3%)538(Top 10%)
35K21.75 mi0.75 mi1120+511056+471056+47583(Top 2%)542(Top 3%)542(Top 10%)
23M23.00 mi1.25 mi1040+80979+77979+77603(Top 2%)568(Top 4%)568(Top 10%)
24M24.00 mi1.00 mi994+46936+43936+43462(Top 2%)428(Top 3%)428(Top 8%)
40K24.85 mi0.85 mi961+33904+32904+32453(Top 2%)421(Top 3%)421(Top 7%)
25.2M25.20 mi0.35 mi948+13891+13891+13706(Top 2%)656(Top 4%)656(Top 12%)
Finish26.22 mi1.02 mi898+50841+50841+50426(Top 1%)400(Top 2%)400(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21story building
+97ft-345ft

Overall

1211

Males

1149

M18-39

1149

5K→10K

3.1 - 6.2 mi

Top 5%
×5story building
+79ft-138ft

Overall

1494

Males

1417

M18-39

1417

10K→15K

6.2 - 9.3 mi

Top 4%
×3story building
+67ft-78ft

Overall

1211

Males

1149

M18-39

1149

15K→20K

9.3 - 12.4 mi

Top 5%
×5story building
+106ft-86ft

Overall

1322

Males

1251

M18-39

1251

20K→Half

12.4 - 13.1 mi

Top 4%
×2story building
+19ft-37ft

Overall

1004

Males

951

M18-39

951

Half→25K

13.1 - 15.5 mi

Top 8%
×4story building
+66ft-88ft

Overall

2233

Males

2123

M18-39

2123

25K→30K

15.5 - 18.6 mi

Top 5%
×9story building
+181ft-148ft

Overall

1348

Males

1273

M18-39

1273

30K→20M

18.6 - 20.0 mi

Top 2%
×5story building
+64ft-50ft

Overall

575

Males

541

M18-39

541

20M→21M

20.0 - 21.0 mi

Top 2%
×8story building
+106ft-24ft

Overall

570

Males

538

M18-39

538

21M→35K

21.0 - 21.8 mi

Top 2%
×7story building
+17ft-86ft

Overall

583

Males

542

M18-39

542

35K→23M

21.8 - 23.0 mi

Top 2%
×5story building
+23ft-63ft

Overall

603

Males

568

M18-39

568

23M→24M

23.0 - 24.0 mi

Top 2%
×6story building
+12ft-82ft

Overall

462

Males

428

M18-39

428

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

453

Males

421

M18-39

421

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

706

Males

656

M18-39

656

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2story building
+22ft-21ft

Overall

426

Males

400

M18-39

400

Passing Analysis

Category:
Athletes Passed
648
Passed By
445
Net Change
+203
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1101
5K → 10K19172-153#1101#1254
10K → 15K5126+25#1254#1229
15K → 20K4244-2#1229#1231
20K → Half160+16#1231#1215
Half → 25K12151-139#1215#1354
25K → 30K6438+26#1354#1328
30K → 20M822+80#1328#1248
20M → 21M770+77#1248#1171
21M → 35K532+51#1171#1120
35K → 23M866+80#1120#1040
23M → 24M471+46#1040#994
24M → 40K352+33#994#961
40K → 25.2M141+13#961#948
25.2M → Finish500+50#948#898
TOTALS648445+203
📊

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