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BOSTON MARATHON 2025

Katherine Tucker

Bib: 27819•F

NH

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

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
9:58/mi
30:59
↑ 97↓ 3451.5%
10K· 6.21 mi
10:42/mi
1:04:14
↑ 79↓ 1380.4%
15K· 9.32 mi
10:04/mi
1:35:29
↑ 67↓ 78
20K· 12.43 mi
11:11/mi
2:10:14
↑ 106↓ 860.1%
Half· 13.11 mi
10:17/mi
2:17:15
↑ 19↓ 370.5%
25K· 15.53 mi
12:33/mi
2:47:40
↑ 66↓ 880.2%
30K· 18.64 mi
13:30/mi
3:29:36
↑ 181↓ 1480.2%
20M
12:06/mi
3:46:02
↑ 64↓ 500.2%
21M
13:05/mi
3:59:07
↑ 106↓ 241.6%
35K· 21.75 mi
11:56/mi
4:08:03
↑ 17↓ 861.7%
23M
12:40/mi
4:23:55
↑ 23↓ 630.6%
24M
12:21/mi
4:36:16
↓ 821.3%
40K· 24.85 mi
12:47/mi
4:47:12
↓ 200.3%
25.2M
13:06/mi
4:51:43
↑ 13↓ 160.2%
Finish· 26.22 mi
11:45/mi
5:03:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:17:15
Pace10:28 /mi
2nd Half
Distance13.11 mi
Time2:46:26
Pace12:42 /mi
📊Positive Split: 21.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:1430:599:5830:59
9:58
-
10K
6.21 mi12:29:291:04:1410:2033:15
10:42
+0:44
15K
9.32 mi13:00:441:35:2910:1531:15
10:04
-0:38
20K
12.43 mi13:35:292:10:1410:2934:45
11:11
+1:07
Half
13.11 mi13:42:302:17:1510:287:01
10:17
-0:54
25K
15.53 mi14:12:552:47:4010:4830:25
12:33
+2:16
30K
18.64 mi14:54:513:29:3611:1541:56
13:30
+0:57
20M
20.00 mi15:11:173:46:0211:1816:26
12:06
-1:24
21M
21.00 mi15:24:223:59:0711:2313:05
13:05
+0:59
35K
21.75 mi15:33:184:08:0311:248:56
11:56
-1:09
23M
23.00 mi15:49:104:23:5511:2815:52
12:40
+0:44
24M
24.00 mi16:01:314:36:1611:3112:21
12:21
-0:19
40K
24.85 mi16:12:274:47:1211:3310:56
12:47
+0:26
25.2M
25.20 mi16:16:584:51:4311:354:31
13:06
+0:19
Finish
26.22 mi16:28:565:03:4111:3511:58
11:45
-1:21

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

9:58 /mi

Average Pace

11:35 /mi

Slowest Pace

13:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:17:15

45% of race

Time at Steady Pace

1:20:06

26% of race

Time at Slower Pace

1:26:20

28% of race

Average Pace: 11:35 /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 mi11:56:1430:599:5830:59
9:58
#25506
10K
6.21 mi12:29:291:04:1410:2033:15
10:42
#26159
15K
9.32 mi13:00:441:35:2910:1531:15
10:04
#25810
20K
12.43 mi13:35:292:10:1410:2934:45
11:11
#25936
Half
13.11 mi13:42:302:17:1510:287:01
10:17
#25910
25K
15.53 mi14:12:552:47:4010:4830:25
12:33
#26183
30K
18.64 mi14:54:513:29:3611:1541:56
13:30
#26452
20M
20.00 mi15:11:173:46:0211:1816:26
12:06
#26379
21M
21.00 mi15:24:223:59:0711:2313:05
13:05
#26325
35K
21.75 mi15:33:184:08:0311:248:56
11:56
#26312
23M
23.00 mi15:49:104:23:5511:2815:52
12:40
#26301
24M
24.00 mi16:01:314:36:1611:3112:21
12:21
#26295
40K
24.85 mi16:12:274:47:1211:3310:56
12:47
#26295
25.2M
25.20 mi16:16:584:51:4311:354:31
13:06
#26288
Finish
26.22 mi16:28:565:03:4111:3511:58
11:45
#26316
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25506104841048425113(Top 88%)10285(Top 84%)10285(Top 188%)
10K6.21 mi3.10 mi26159-65310856-37210856-37226600(Top 94%)11122(Top 91%)11122(Top 203%)
15K9.32 mi3.11 mi25810+34910675+18110675+18125113(Top 88%)10285(Top 84%)10285(Top 188%)
20K12.43 mi3.11 mi25936-12610753-7810753-7826275(Top 93%)10957(Top 90%)10957(Top 200%)
Half13.11 mi0.68 mi25910+2610740+1310740+1325409(Top 89%)10500(Top 86%)10500(Top 192%)
25K15.53 mi2.42 mi26183-27310885-14510885-14526961(Top 95%)11402(Top 93%)11402(Top 208%)
30K18.64 mi3.11 mi26452-26911076-19111076-19127136(Top 96%)11575(Top 95%)11575(Top 212%)
20M20.00 mi1.36 mi26379+7311050+2611050+2625381(Top 89%)10694(Top 87%)10694(Top 196%)
21M21.00 mi1.00 mi26325+5411030+2011030+2025144(Top 89%)10638(Top 87%)10638(Top 195%)
35K21.75 mi0.75 mi26312+1311037-711037-725758(Top 91%)10983(Top 90%)10983(Top 201%)
23M23.00 mi1.25 mi26301+1111040-311040-326002(Top 92%)11093(Top 91%)11093(Top 203%)
24M24.00 mi1.00 mi26295+611048-811048-826110(Top 92%)11184(Top 91%)11184(Top 204%)
40K24.85 mi0.85 mi2629511053-511053-526035(Top 92%)11160(Top 91%)11160(Top 204%)
25.2M25.20 mi0.35 mi26288+7110531105325150(Top 89%)10772(Top 88%)10772(Top 197%)
Finish26.22 mi1.02 mi26316-2811069-1611069-1626462(Top 93%)11368(Top 93%)11368(Top 208%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

25113

Females

10285

F18-39

10285

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

26600

Females

11122

F18-39

11122

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

25113

Females

10285

F18-39

10285

15K→20K

9.3 - 12.4 mi

Top 93%
×5story building
+106ft-86ft

Overall

26275

Females

10957

F18-39

10957

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

25409

Females

10500

F18-39

10500

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

26961

Females

11402

F18-39

11402

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

27136

Females

11575

F18-39

11575

30K→20M

18.6 - 20.0 mi

Top 89%
×5story building
+64ft-50ft

Overall

25381

Females

10694

F18-39

10694

20M→21M

20.0 - 21.0 mi

Top 89%
×8story building
+106ft-24ft

Overall

25144

Females

10638

F18-39

10638

21M→35K

21.0 - 21.8 mi

Top 91%
×7story building
+17ft-86ft

Overall

25758

Females

10983

F18-39

10983

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

26002

Females

11093

F18-39

11093

23M→24M

23.0 - 24.0 mi

Top 92%
×6story building
+12ft-82ft

Overall

26110

Females

11184

F18-39

11184

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26035

Females

11160

F18-39

11160

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25150

Females

10772

F18-39

10772

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2story building
+22ft-21ft

Overall

26462

Females

11368

F18-39

11368

Passing Analysis

Category:
Athletes Passed
881
Passed By
1691
Net Change
-810
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25506
5K → 10K41694-653#25506#26159
10K → 15K36011+349#26159#25810
15K → 20K85211-126#25810#25936
20K → Half326+26#25936#25910
Half → 25K12285-273#25910#26183
25K → 30K36305-269#26183#26452
30K → 20M8411+73#26452#26379
20M → 21M7117+54#26379#26325
21M → 35K3219+13#26325#26312
35K → 23M3625+11#26312#26301
23M → 24M3529+6#26301#26295
24M → 40K26260#26295#26295
40K → 25.2M158+7#26295#26288
25.2M → Finish1644-28#26288#26316
TOTALS8811691-810
📊

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