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BOSTON MARATHON 2025

Korinne Israel

Bib: 17553•F

IA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 35%
Gender (Female)
#0 / 12228
Top 18%
Division (F18-39)
#0 / 5469
Top 32%
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
7:20/mi
22:47
↑ 97↓ 3451.5%
10K· 6.21 mi
7:25/mi
45:49
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:09:00
↑ 67↓ 78
20K· 12.43 mi
7:28/mi
1:32:11
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:37:12
↑ 19↓ 370.5%
25K· 15.53 mi
7:24/mi
1:55:08
↑ 66↓ 880.2%
30K· 18.64 mi
7:38/mi
2:18:50
↑ 181↓ 1480.2%
20M
7:55/mi
2:29:35
↑ 64↓ 500.2%
21M
8:19/mi
2:37:54
↑ 106↓ 241.6%
35K· 21.75 mi
7:51/mi
2:43:46
↑ 17↓ 861.7%
23M
8:01/mi
2:53:48
↑ 23↓ 630.6%
24M
7:52/mi
3:01:40
↓ 821.3%
40K· 24.85 mi
8:01/mi
3:08:31
↓ 200.3%
25.2M
8:36/mi
3:11:29
↑ 13↓ 160.2%
Finish· 26.22 mi
7:42/mi
3:19:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:12
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:42:08
Pace7:47 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:5722:477:2022:47
7:20
-
10K
6.21 mi11:35:5945:497:2223:02
7:25
+0:05
15K
9.32 mi11:59:101:09:007:2423:11
7:28
+0:03
20K
12.43 mi12:22:211:32:117:2523:11
7:28
0:00
Half
13.11 mi12:27:221:37:127:255:01
7:21
-0:07
25K
15.53 mi12:45:181:55:087:2517:56
7:24
+0:03
30K
18.64 mi13:09:002:18:507:2723:42
7:38
+0:14
20M
20.00 mi13:19:452:29:357:2910:45
7:55
+0:17
21M
21.00 mi13:28:042:37:547:318:19
8:19
+0:24
35K
21.75 mi13:33:562:43:467:325:52
7:51
-0:28
23M
23.00 mi13:43:582:53:487:3310:02
8:01
+0:10
24M
24.00 mi13:51:503:01:407:347:52
7:52
-0:09
40K
24.85 mi13:58:413:08:317:356:51
8:01
+0:09
25.2M
25.20 mi14:01:393:11:297:362:58
8:36
+0:35
Finish
26.22 mi14:09:303:19:207:367:51
7:42
-0:54

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

7:20 /mi

Average Pace

7:36 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:03

94% of race

Time at Steady Pace

11:17

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:36 /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 mi11:12:5722:477:2022:47
7:20
#10719
10K
6.21 mi11:35:5945:497:2223:02
7:25
#10994
15K
9.32 mi11:59:101:09:007:2423:11
7:28
#11097
20K
12.43 mi12:22:211:32:117:2523:11
7:28
#10914
Half
13.11 mi12:27:221:37:127:255:01
7:21
#10876
25K
15.53 mi12:45:181:55:087:2517:56
7:24
#10560
30K
18.64 mi13:09:002:18:507:2723:42
7:38
#10125
20M
20.00 mi13:19:452:29:357:2910:45
7:55
#10051
21M
21.00 mi13:28:042:37:547:318:19
8:19
#9988
35K
21.75 mi13:33:562:43:467:325:52
7:51
#10006
23M
23.00 mi13:43:582:53:487:3310:02
8:01
#9987
24M
24.00 mi13:51:503:01:407:347:52
7:52
#9978
40K
24.85 mi13:58:413:08:317:356:51
8:01
#9944
25.2M
25.20 mi14:01:393:11:297:362:58
8:36
#9933
Finish
26.22 mi14:09:303:19:207:367:51
7:42
#9942
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi107192145214511450(Top 40%)2604(Top 21%)2604(Top 48%)
10K6.21 mi3.10 mi10994-2752300-1552300-15511320(Top 40%)2471(Top 20%)2471(Top 45%)
15K9.32 mi3.11 mi11097-1032367-672367-6711450(Top 40%)2604(Top 21%)2604(Top 48%)
20K12.43 mi3.11 mi10914+1832294+732294+7310450(Top 37%)2188(Top 18%)2188(Top 40%)
Half13.11 mi0.68 mi10876+382281+132281+1310537(Top 37%)2202(Top 18%)2202(Top 40%)
25K15.53 mi2.42 mi10560+3162161+1202161+1209155(Top 32%)1711(Top 14%)1711(Top 31%)
30K18.64 mi3.11 mi10125+4352024+1372024+1378677(Top 31%)1687(Top 14%)1687(Top 31%)
20M20.00 mi1.36 mi10051+742014+102014+109834(Top 35%)2359(Top 19%)2359(Top 43%)
21M21.00 mi1.00 mi9988+632023-92023-99345(Top 33%)2304(Top 19%)2304(Top 42%)
35K21.75 mi0.75 mi10006-182070-472070-4711143(Top 39%)3169(Top 26%)3169(Top 58%)
23M23.00 mi1.25 mi9987+192104-342104-3410136(Top 36%)2803(Top 23%)2803(Top 51%)
24M24.00 mi1.00 mi9978+92134-302134-3010337(Top 36%)2959(Top 24%)2959(Top 54%)
40K24.85 mi0.85 mi9944+342149-152149-1510308(Top 36%)3072(Top 25%)3072(Top 56%)
25.2M25.20 mi0.35 mi9933+112157-82157-89473(Top 33%)2750(Top 22%)2750(Top 50%)
Finish26.22 mi1.02 mi9942-92192-352192-3510735(Top 38%)3329(Top 27%)3329(Top 61%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11450

Females

2604

F18-39

2604

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

11320

Females

2471

F18-39

2471

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11450

Females

2604

F18-39

2604

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

10450

Females

2188

F18-39

2188

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

10537

Females

2202

F18-39

2202

Half→25K

13.1 - 15.5 mi

Top 32%
×4story building
+66ft-88ft

Overall

9155

Females

1711

F18-39

1711

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8677

Females

1687

F18-39

1687

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

9834

Females

2359

F18-39

2359

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

9345

Females

2304

F18-39

2304

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

11143

Females

3169

F18-39

3169

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

10136

Females

2803

F18-39

2803

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

10337

Females

2959

F18-39

2959

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10308

Females

3072

F18-39

3072

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9473

Females

2750

F18-39

2750

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2story building
+22ft-21ft

Overall

10735

Females

3329

F18-39

3329

Passing Analysis

Category:
Athletes Passed
2163
Passed By
1381
Net Change
+777
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10719
5K → 10K144419-275#10719#10994
10K → 15K140243-103#10994#11097
15K → 20K26784+183#11097#10914
20K → Half5416+38#10914#10876
Half → 25K33721+316#10876#10560
25K → 30K47236+435#10560#10125
30K → 20M15379+74#10125#10051
20M → 21M14582+63#10051#9988
21M → 35K6177-18#9988#10006
35K → 23M10586+19#10006#9987
23M → 24M8878+9#9987#9978
24M → 40K8651+34#9978#9944
40K → 25.2M3827+11#9944#9933
25.2M → Finish7382-9#9933#9942
TOTALS21631381+777
📊

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