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BOSTON MARATHON 2025

Katherine Deloreto

Bib: 16352•F

TN

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0:00
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Overall
#0 / 28404
Top 32%
Gender (Female)
#0 / 12228
Top 15%
Division (F18-39)
#0 / 5469
Top 27%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:10
Rank: #14615
Start → 5K
24:10 | 7:47/mi
10K· 6.21 mi
48:13
Rank: #14425 (+190)
5K → 10K
24:03 | 7:44/mi
15K· 9.32 mi
1:12:04
Rank: #14039 (+386)
10K → 15K
23:51 | 7:41/mi
20K· 12.43 mi
1:35:46
Rank: #13421 (+618)
15K → 20K
23:42 | 7:38/mi
Half· 13.11 mi
1:40:56
Rank: #13361 (+60)
20K → Half
5:10 | 7:34/mi
25K· 15.53 mi
1:59:19
Rank: #12862 (+499)
Half → 25K
18:23 | 7:35/mi
30K· 18.64 mi
2:22:51
Rank: #11937 (+925)
25K → 30K
23:32 | 7:34/mi
20M
2:32:53
Rank: #11432 (+505)
30K → 20M
10:02 | 7:23/mi
21M
2:40:25
Rank: #10985 (+447)
20M → 21M
7:32 | 7:32/mi
35K· 21.75 mi
2:45:40
Rank: #10749 (+236)
21M → 35K
5:15 | 7:01/mi
23M
2:54:32
Rank: #10259 (+490)
35K → 23M
8:52 | 7:05/mi
24M
3:01:25
Rank: #9864 (+395)
23M → 24M
6:53 | 6:53/mi
40K· 24.85 mi
3:07:21
Rank: #9555 (+309)
24M → 40K
5:56 | 6:56/mi
25.2M
3:09:56
Rank: #9412 (+143)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
3:16:47
Rank: #9124 (+288)
25.2M → Finish
6:51 | 6:43/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:40:56
Pace7:42 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:35:51
Pace7:19 /mi
📊Negative Split: 5.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:4524:107:4724:10
7:47
-
10K
6.21 mi11:22:4848:137:4624:03
7:44
-0:03
15K
9.32 mi11:46:391:12:047:4423:51
7:41
-0:03
20K
12.43 mi12:10:211:35:467:4223:42
7:38
-0:03
Half
13.11 mi12:15:311:40:567:425:10
7:34
-0:04
25K
15.53 mi12:33:541:59:197:4118:23
7:35
+0:01
30K
18.64 mi12:57:262:22:517:4023:32
7:34
-0:01
20M
20.00 mi13:07:282:32:537:3910:02
7:23
-0:11
21M
21.00 mi13:15:002:40:257:387:32
7:32
+0:09
35K
21.75 mi13:20:152:45:407:375:15
7:01
-0:31
23M
23.00 mi13:29:072:54:327:358:52
7:05
+0:04
24M
24.00 mi13:36:003:01:257:346:53
6:53
-0:12
40K
24.85 mi13:41:563:07:217:325:56
6:56
+0:03
25.2M
25.20 mi13:44:313:09:567:322:35
7:29
+0:33
Finish
26.22 mi13:51:223:16:477:316:51
6:43
-0:46

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

6:43 /mi

Average Pace

7:31 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

43:49

22% of race

Time at Steady Pace

2:32:58

78% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:30 /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 mi10:58:4524:107:4724:10
7:47
#14615
10K
6.21 mi11:22:4848:137:4624:03
7:44
#14425
15K
9.32 mi11:46:391:12:047:4423:51
7:41
#14039
20K
12.43 mi12:10:211:35:467:4223:42
7:38
#13421
Half
13.11 mi12:15:311:40:567:425:10
7:34
#13361
25K
15.53 mi12:33:541:59:197:4118:23
7:35
#12862
30K
18.64 mi12:57:262:22:517:4023:32
7:34
#11937
20M
20.00 mi13:07:282:32:537:3910:02
7:23
#11432
21M
21.00 mi13:15:002:40:257:387:32
7:32
#10985
35K
21.75 mi13:20:152:45:407:375:15
7:01
#10749
23M
23.00 mi13:29:072:54:327:358:52
7:05
#10259
24M
24.00 mi13:36:003:01:257:346:53
6:53
#9864
40K
24.85 mi13:41:563:07:217:325:56
6:56
#9555
25.2M
25.20 mi13:44:313:09:567:322:35
7:29
#9412
Finish
26.22 mi13:51:223:16:477:316:51
6:43
#9124
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi146154285428513254(Top 47%)3580(Top 29%)3580(Top 65%)
10K6.21 mi3.10 mi14425+1904185+1004185+10014259(Top 50%)4105(Top 34%)4105(Top 75%)
15K9.32 mi3.11 mi14039+3863995+1903995+19013254(Top 47%)3580(Top 29%)3580(Top 65%)
20K12.43 mi3.11 mi13421+6183672+3233672+32311798(Top 42%)2885(Top 24%)2885(Top 53%)
Half13.11 mi0.68 mi13361+603647+253647+2512345(Top 43%)3112(Top 25%)3112(Top 57%)
25K15.53 mi2.42 mi12862+4993396+2513396+25110609(Top 37%)2373(Top 19%)2373(Top 43%)
30K18.64 mi3.11 mi11937+9252963+4332963+4338271(Top 29%)1499(Top 12%)1499(Top 27%)
20M20.00 mi1.36 mi11432+5052739+2242739+2246322(Top 22%)901(Top 7%)901(Top 16%)
21M21.00 mi1.00 mi10985+4472538+2012538+2014819(Top 17%)573(Top 5%)573(Top 10%)
35K21.75 mi0.75 mi10749+2362437+1012437+1015543(Top 20%)793(Top 6%)793(Top 14%)
23M23.00 mi1.25 mi10259+4902244+1932244+1934265(Top 15%)474(Top 4%)474(Top 9%)
24M24.00 mi1.00 mi9864+3952069+1752069+1754034(Top 14%)470(Top 4%)470(Top 9%)
40K24.85 mi0.85 mi9555+3091956+1131956+1133621(Top 13%)416(Top 3%)416(Top 8%)
25.2M25.20 mi0.35 mi9412+1431911+451911+453472(Top 12%)439(Top 4%)439(Top 8%)
Finish26.22 mi1.02 mi9124+2881820+911820+914061(Top 14%)579(Top 5%)579(Top 11%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21stories
+97ft-345ft

Overall

13254

Females

3580

F18-39

3580

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

14259

Females

4105

F18-39

4105

10K→15K

6.2 - 9.3 mi

Top 47%
×3stories
+67ft-78ft

Overall

13254

Females

3580

F18-39

3580

15K→20K

9.3 - 12.4 mi

Top 42%
×5stories
+106ft-86ft

Overall

11798

Females

2885

F18-39

2885

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

12345

Females

3112

F18-39

3112

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

10609

Females

2373

F18-39

2373

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

8271

Females

1499

F18-39

1499

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

6322

Females

901

F18-39

901

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4819

Females

573

F18-39

573

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5543

Females

793

F18-39

793

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4265

Females

474

F18-39

474

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

4034

Females

470

F18-39

470

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3621

Females

416

F18-39

416

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3472

Females

439

F18-39

439

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

4061

Females

579

F18-39

579

Passing Analysis

Category:
Athletes Passed
5779*
Passed By
288
Net Change
+5491
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14615
5K → 10K396206+190#14615#14425
10K → 15K43650+386#14425#14039
15K → 20K6279+618#14039#13421
20K → Half7212+60#13421#13361
Half → 25K50910+499#13361#12862
25K → 30K9261+925#12862#11937
30K → 20M5050+505#11937#11432
20M → 21M4470+447#11432#10985
21M → 35K2360+236#10985#10749
35K → 23M4900+490#10749#10259
23M → 24M395*0+395#10259#9864
24M → 40K3090+309#9864#9555
40K → 25.2M1430+143#9555#9412
25.2M → Finish2880+288#9412#9124
TOTALS5779*288+5491

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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