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BOSTON MARATHON 2025

Katherine Toy

Bib: 17468•F

BC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 27%
Gender (Female)
#0 / 12228
Top 10%
Division (F18-39)
#0 / 5469
Top 18%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:57
Rank: #11201
Start → 5K
22:57 | 7:23/mi
10K· 6.21 mi
46:03
Rank: #11328 (-127)
5K → 10K
23:06 | 7:26/mi
15K· 9.32 mi
1:08:51
Rank: #10941 (+387)
10K → 15K
22:48 | 7:20/mi
20K· 12.43 mi
1:31:35
Rank: #10487 (+454)
15K → 20K
22:44 | 7:19/mi
Half· 13.11 mi
1:36:30
Rank: #10398 (+89)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:54:15
Rank: #10042 (+356)
Half → 25K
17:45 | 7:19/mi
30K· 18.64 mi
2:17:09
Rank: #9349 (+693)
25K → 30K
22:54 | 7:22/mi
20M
2:26:57
Rank: #8936 (+413)
30K → 20M
9:48 | 7:13/mi
21M
2:34:29
Rank: #8604 (+332)
20M → 21M
7:32 | 7:32/mi
35K· 21.75 mi
2:39:47
Rank: #8445 (+159)
21M → 35K
5:18 | 7:05/mi
23M
2:48:54
Rank: #8169 (+276)
35K → 23M
9:07 | 7:17/mi
24M
2:56:04
Rank: #8001 (+168)
23M → 24M
7:10 | 7:10/mi
40K· 24.85 mi
3:02:11
Rank: #7813 (+188)
24M → 40K
6:07 | 7:09/mi
25.2M
3:04:53
Rank: #7738 (+75)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
3:11:49
Rank: #7554 (+184)
25.2M → Finish
6:56 | 6:48/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:36:30
Pace7:22 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:35:19
Pace7:16 /mi
📊Negative Split: 1.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:0522:577:2322:57
7:23
-
10K
6.21 mi11:36:1146:037:2523:06
7:26
+0:03
15K
9.32 mi11:58:591:08:517:2322:48
7:20
-0:06
20K
12.43 mi12:21:431:31:357:2222:44
7:19
-0:01
Half
13.11 mi12:26:381:36:307:224:55
7:12
-0:07
25K
15.53 mi12:44:231:54:157:2117:45
7:19
+0:07
30K
18.64 mi13:07:172:17:097:2122:54
7:22
+0:03
20M
20.00 mi13:17:052:26:577:219:48
7:13
-0:09
21M
21.00 mi13:24:372:34:297:217:32
7:32
+0:19
35K
21.75 mi13:29:552:39:477:215:18
7:05
-0:27
23M
23.00 mi13:39:022:48:547:219:07
7:17
+0:12
24M
24.00 mi13:46:122:56:047:207:10
7:10
-0:07
40K
24.85 mi13:52:193:02:117:206:07
7:09
-0:01
25.2M
25.20 mi13:55:013:04:537:202:42
7:50
+0:41
Finish
26.22 mi14:01:573:11:497:196:56
6:48
-1:02

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

6:48 /mi

Average Pace

7:19 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:01:35

95% of race

Time at Steady Pace

10:14

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:19 /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 mi11:13:0522:577:2322:57
7:23
#11201
10K
6.21 mi11:36:1146:037:2523:06
7:26
#11328
15K
9.32 mi11:58:591:08:517:2322:48
7:20
#10941
20K
12.43 mi12:21:431:31:357:2222:44
7:19
#10487
Half
13.11 mi12:26:381:36:307:224:55
7:12
#10398
25K
15.53 mi12:44:231:54:157:2117:45
7:19
#10042
30K
18.64 mi13:07:172:17:097:2122:54
7:22
#9349
20M
20.00 mi13:17:052:26:577:219:48
7:13
#8936
21M
21.00 mi13:24:372:34:297:217:32
7:32
#8604
35K
21.75 mi13:29:552:39:477:215:18
7:05
#8445
23M
23.00 mi13:39:022:48:547:219:07
7:17
#8169
24M
24.00 mi13:46:122:56:047:207:10
7:10
#8001
40K
24.85 mi13:52:193:02:117:206:07
7:09
#7813
25.2M
25.20 mi13:55:013:04:537:202:42
7:50
#7738
Finish
26.22 mi14:01:573:11:497:196:56
6:48
#7554
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi112012368236810316(Top 36%)2027(Top 17%)2027(Top 37%)
10K6.21 mi3.10 mi11328-1272461-932461-9311510(Top 41%)2565(Top 21%)2565(Top 47%)
15K9.32 mi3.11 mi10941+3872286+1752286+17510316(Top 36%)2027(Top 17%)2027(Top 37%)
20K12.43 mi3.11 mi10487+4542091+1952091+1959194(Top 32%)1603(Top 13%)1603(Top 29%)
Half13.11 mi0.68 mi10398+892059+322059+329170(Top 32%)1555(Top 13%)1555(Top 28%)
25K15.53 mi2.42 mi10042+3561926+1331926+1338523(Top 30%)1433(Top 12%)1433(Top 26%)
30K18.64 mi3.11 mi9349+6931657+2691657+2696897(Top 24%)971(Top 8%)971(Top 18%)
20M20.00 mi1.36 mi8936+4131510+1471510+1475292(Top 19%)588(Top 5%)588(Top 11%)
21M21.00 mi1.00 mi8604+3321411+991411+994816(Top 17%)570(Top 5%)570(Top 10%)
35K21.75 mi0.75 mi8445+1591373+381373+385948(Top 21%)916(Top 7%)916(Top 17%)
23M23.00 mi1.25 mi8169+2761303+701303+705391(Top 19%)794(Top 6%)794(Top 15%)
24M24.00 mi1.00 mi8001+1681283+201283+205648(Top 20%)948(Top 8%)948(Top 17%)
40K24.85 mi0.85 mi7813+1881241+421241+424840(Top 17%)736(Top 6%)736(Top 13%)
25.2M25.20 mi0.35 mi7738+751229+121229+125120(Top 18%)918(Top 8%)918(Top 17%)
Finish26.22 mi1.02 mi7554+1841192+371192+374562(Top 16%)717(Top 6%)717(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

10316

Females

2027

F18-39

2027

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

11510

Females

2565

F18-39

2565

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

10316

Females

2027

F18-39

2027

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

9194

Females

1603

F18-39

1603

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

9170

Females

1555

F18-39

1555

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

8523

Females

1433

F18-39

1433

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6897

Females

971

F18-39

971

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5292

Females

588

F18-39

588

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4816

Females

570

F18-39

570

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5948

Females

916

F18-39

916

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5391

Females

794

F18-39

794

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5648

Females

948

F18-39

948

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4840

Females

736

F18-39

736

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5120

Females

918

F18-39

918

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4562

Females

717

F18-39

717

Passing Analysis

Category:
Athletes Passed
4072*
Passed By
425
Net Change
+3647
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11201
5K → 10K189316-127#11201#11328
10K → 15K43043+387#11328#10941
15K → 20K46612+454#10941#10487
20K → Half956+89#10487#10398
Half → 25K369*13+356#10398#10042
25K → 30K696*3+693#10042#9349
30K → 20M4141+413#9349#8936
20M → 21M3342+332#8936#8604
21M → 35K1667+159#8604#8445
35K → 23M2804+276#8445#8169
23M → 24M1757+168#8169#8001
24M → 40K1924+188#8001#7813
40K → 25.2M794+75#7813#7738
25.2M → Finish1873+184#7738#7554
TOTALS4072*425+3647

* 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