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BOSTON MARATHON 2025

Katrina Santos

Bib: 26693•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
35:02
Rank: #27829
Start → 5K
35:02 | 11:17/mi
10K· 6.21 mi
1:08:58
Rank: #27435 (+394)
5K → 10K
33:56 | 10:55/mi
15K· 9.32 mi
1:42:12
Rank: #27028 (+407)
10K → 15K
33:14 | 10:42/mi
20K· 12.43 mi
2:14:31
Rank: #26527 (+501)
15K → 20K
32:19 | 10:24/mi
Half· 13.11 mi
2:21:31
Rank: #26464 (+63)
20K → Half
7:00 | 10:16/mi
25K· 15.53 mi
2:46:33
Rank: #26073 (+391)
Half → 25K
25:02 | 10:19/mi
30K· 18.64 mi
3:18:37
Rank: #25515 (+558)
25K → 30K
32:04 | 10:19/mi
20M
3:32:27
Rank: #25284 (+231)
30K → 20M
13:50 | 10:11/mi
21M
3:42:52
Rank: #25074 (+210)
20M → 21M
10:25 | 10:25/mi
35K· 21.75 mi
3:50:12
Rank: #24998 (+76)
21M → 35K
7:20 | 9:48/mi
23M
4:03:05
Rank: #24833 (+165)
35K → 23M
12:53 | 10:17/mi
24M
4:13:14
Rank: #24730 (+103)
23M → 24M
10:09 | 10:09/mi
40K· 24.85 mi
4:21:57
Rank: #24622 (+108)
24M → 40K
8:43 | 10:12/mi
25.2M
4:25:46
Rank: #24575 (+47)
40K → 25.2M
3:49 | 11:04/mi
Finish· 26.22 mi
4:35:23
Rank: #24486 (+89)
25.2M → Finish
9:37 | 9:26/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:21:31
Pace10:48 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:13:52
Pace10:13 /mi
📊Negative Split: 5.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5335:0211:1735:02
11:17
-
10K
6.21 mi12:24:491:08:5811:0633:56
10:55
-0:22
15K
9.32 mi12:58:031:42:1210:5833:14
10:42
-0:13
20K
12.43 mi13:30:222:14:3110:4932:19
10:24
-0:18
Half
13.11 mi13:37:222:21:3110:487:00
10:16
-0:08
25K
15.53 mi14:02:242:46:3310:4325:02
10:19
+0:03
30K
18.64 mi14:34:283:18:3710:3932:04
10:19
0:00
20M
20.00 mi14:48:183:32:2710:3713:50
10:11
-0:08
21M
21.00 mi14:58:433:42:5210:3710:25
10:25
+0:14
35K
21.75 mi15:06:033:50:1210:357:20
9:48
-0:37
23M
23.00 mi15:18:564:03:0510:3412:53
10:17
+0:29
24M
24.00 mi15:29:054:13:1410:3310:09
10:09
-0:08
40K
24.85 mi15:37:484:21:5710:328:43
10:12
+0:03
25.2M
25.20 mi15:41:374:25:4610:333:49
11:04
+0:52
Finish
26.22 mi15:51:144:35:2310:319:37
9:26
-1:38

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

9:26 /mi

Average Pace

10:31 /mi

Slowest Pace

11:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:38

46% of race

Time at Steady Pace

1:53:43

41% of race

Time at Slower Pace

35:02

13% of race

Average Pace: 10:30 /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 mi11:50:5335:0211:1735:02
11:17
#27829
10K
6.21 mi12:24:491:08:5811:0633:56
10:55
#27435
15K
9.32 mi12:58:031:42:1210:5833:14
10:42
#27028
20K
12.43 mi13:30:222:14:3110:4932:19
10:24
#26527
Half
13.11 mi13:37:222:21:3110:487:00
10:16
#26464
25K
15.53 mi14:02:242:46:3310:4325:02
10:19
#26073
30K
18.64 mi14:34:283:18:3710:3932:04
10:19
#25515
20M
20.00 mi14:48:183:32:2710:3713:50
10:11
#25284
21M
21.00 mi14:58:433:42:5210:3710:25
10:25
#25074
35K
21.75 mi15:06:033:50:1210:357:20
9:48
#24998
23M
23.00 mi15:18:564:03:0510:3412:53
10:17
#24833
24M
24.00 mi15:29:054:13:1410:3310:09
10:09
#24730
40K
24.85 mi15:37:484:21:5710:328:43
10:12
#24622
25.2M
25.20 mi15:41:374:25:4610:333:49
11:04
#24575
Finish
26.22 mi15:51:144:35:2310:319:37
9:26
#24486
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27829118481184826250(Top 92%)10918(Top 89%)10918(Top 200%)
10K6.21 mi3.10 mi27435+39411605+24311605+24326961(Top 95%)11346(Top 93%)11346(Top 207%)
15K9.32 mi3.11 mi27028+40711371+23411371+23426250(Top 92%)10918(Top 89%)10918(Top 200%)
20K12.43 mi3.11 mi26527+50111082+28911082+28925032(Top 88%)10276(Top 84%)10276(Top 188%)
Half13.11 mi0.68 mi26464+6311045+3711045+3725391(Top 89%)10483(Top 86%)10483(Top 192%)
25K15.53 mi2.42 mi26073+39110834+21110834+21124015(Top 85%)9749(Top 80%)9749(Top 178%)
30K18.64 mi3.11 mi25515+55810573+26110573+26122521(Top 79%)9059(Top 74%)9059(Top 166%)
20M20.00 mi1.36 mi25284+23110458+11510458+11521534(Top 76%)8652(Top 71%)8652(Top 158%)
21M21.00 mi1.00 mi25074+21010343+11510343+11519780(Top 70%)7789(Top 64%)7789(Top 142%)
35K21.75 mi0.75 mi24998+7610311+3210311+3221364(Top 75%)8710(Top 71%)8710(Top 159%)
23M23.00 mi1.25 mi24833+16510235+7610235+7621403(Top 75%)8756(Top 72%)8756(Top 160%)
24M24.00 mi1.00 mi24730+10310201+3410201+3421819(Top 77%)9051(Top 74%)9051(Top 165%)
40K24.85 mi0.85 mi24622+10810152+4910152+4921087(Top 74%)8715(Top 71%)8715(Top 159%)
25.2M25.20 mi0.35 mi24575+4710125+2710125+2720919(Top 74%)8633(Top 71%)8633(Top 158%)
Finish26.22 mi1.02 mi24486+8910095+3010095+3020986(Top 74%)8657(Top 71%)8657(Top 158%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21stories
+97ft-345ft

Overall

26250

Females

10918

F18-39

10918

5K→10K

3.1 - 6.2 mi

Top 95%
×5stories
+79ft-138ft

Overall

26961

Females

11346

F18-39

11346

10K→15K

6.2 - 9.3 mi

Top 92%
×3stories
+67ft-78ft

Overall

26250

Females

10918

F18-39

10918

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

25032

Females

10276

F18-39

10276

20K→Half

12.4 - 13.1 mi

Top 89%
×2stories
+19ft-37ft

Overall

25391

Females

10483

F18-39

10483

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

24015

Females

9749

F18-39

9749

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

22521

Females

9059

F18-39

9059

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

21534

Females

8652

F18-39

8652

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

19780

Females

7789

F18-39

7789

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

21364

Females

8710

F18-39

8710

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

21403

Females

8756

F18-39

8756

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

21819

Females

9051

F18-39

9051

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

21087

Females

8715

F18-39

8715

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

20919

Females

8633

F18-39

8633

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

20986

Females

8657

F18-39

8657

Passing Analysis

Category:
Athletes Passed
3375
Passed By
32
Net Change
+3343
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27829
5K → 10K4028+394#27829#27435
10K → 15K4114+407#27435#27028
15K → 20K5032+501#27028#26527
20K → Half652+63#26527#26464
Half → 25K3910+391#26464#26073
25K → 30K5580+558#26073#25515
30K → 20M2343+231#25515#25284
20M → 21M2133+210#25284#25074
21M → 35K771+76#25074#24998
35K → 23M1650+165#24998#24833
23M → 24M1052+103#24833#24730
24M → 40K1102+108#24730#24622
40K → 25.2M481+47#24622#24575
25.2M → Finish934+89#24575#24486
TOTALS337532+3343
📊

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