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BOSTON MARATHON 2025

Katrine Hildebrandt

Bib: 18729•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 45%
Gender (Female)
#0 / 12228
Top 30%
Masters (Masters Women)
#0 / 6759
Top 15%
Division (F40-44)
#0 / 1718
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
7:42/mi
23:54
↑ 97↓ 3451.5%
10K· 6.21 mi
7:29/mi
47:08
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:10:19
↑ 67↓ 78
20K· 12.43 mi
7:33/mi
1:33:46
↑ 106↓ 860.1%
Half· 13.11 mi
7:31/mi
1:38:54
↑ 19↓ 370.5%
25K· 15.53 mi
7:43/mi
1:57:36
↑ 66↓ 880.2%
30K· 18.64 mi
8:11/mi
2:23:01
↑ 181↓ 1480.2%
20M
8:29/mi
2:34:33
↑ 64↓ 500.2%
21M
9:17/mi
2:43:50
↑ 106↓ 241.6%
35K· 21.75 mi
8:04/mi
2:49:52
↑ 17↓ 861.7%
23M
8:40/mi
3:00:43
↑ 23↓ 630.6%
24M
8:31/mi
3:09:14
↓ 821.3%
40K· 24.85 mi
8:45/mi
3:16:43
↓ 200.3%
25.2M
10:00/mi
3:20:10
↑ 13↓ 160.2%
Finish· 26.22 mi
8:28/mi
3:28:48
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:54
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time1:49:54
Pace8:23 /mi
📊Positive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:2423:547:4223:54
7:42
-
10K
6.21 mi11:38:3847:087:3523:14
7:29
-0:13
15K
9.32 mi12:01:491:10:197:3323:11
7:28
-0:01
20K
12.43 mi12:25:161:33:467:3323:27
7:33
+0:05
Half
13.11 mi12:30:241:38:547:335:08
7:31
-0:02
25K
15.53 mi12:49:061:57:367:3418:42
7:43
+0:12
30K
18.64 mi13:14:312:23:017:4025:25
8:11
+0:28
20M
20.00 mi13:26:032:34:337:4411:32
8:29
+0:18
21M
21.00 mi13:35:202:43:507:489:17
9:17
+0:48
35K
21.75 mi13:41:222:49:527:496:02
8:04
-1:13
23M
23.00 mi13:52:133:00:437:5110:51
8:40
+0:36
24M
24.00 mi14:00:443:09:147:538:31
8:31
-0:09
40K
24.85 mi14:08:133:16:437:557:29
8:45
+0:14
25.2M
25.20 mi14:11:403:20:107:573:27
10:00
+1:15
Finish
26.22 mi14:20:183:28:487:588:38
8:28
-1:32

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

7:28 /mi

Average Pace

7:58 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:36

56% of race

Time at Steady Pace

1:00:08

29% of race

Time at Slower Pace

31:04

15% of race

Average Pace: 7:58 /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 mi11:15:2423:547:4223:54
7:42
#13928
10K
6.21 mi11:38:3847:087:3523:14
7:29
#12894
15K
9.32 mi12:01:491:10:197:3323:11
7:28
#12382
20K
12.43 mi12:25:161:33:467:3323:27
7:33
#12040
Half
13.11 mi12:30:241:38:547:335:08
7:31
#12028
25K
15.53 mi12:49:061:57:367:3418:42
7:43
#11930
30K
18.64 mi13:14:312:23:017:4025:25
8:11
#12018
20M
20.00 mi13:26:032:34:337:4411:32
8:29
#12128
21M
21.00 mi13:35:202:43:507:489:17
9:17
#12322
35K
21.75 mi13:41:222:49:527:496:02
8:04
#12313
23M
23.00 mi13:52:133:00:437:5110:51
8:40
#12405
24M
24.00 mi14:00:443:09:147:538:31
8:31
#12525
40K
24.85 mi14:08:133:16:437:557:29
8:45
#12620
25.2M
25.20 mi14:11:403:20:107:573:27
10:00
#12701
Finish
26.22 mi14:20:183:28:487:588:38
8:28
#12841
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi139283860386011465(Top 40%)2619(Top 21%)2619(Top 152%)
10K6.21 mi3.10 mi12894+10343283+5773283+57711929(Top 42%)2781(Top 23%)2781(Top 162%)
15K9.32 mi3.11 mi12382+5123040+2433040+24311465(Top 40%)2619(Top 21%)2619(Top 152%)
20K12.43 mi3.11 mi12040+3422894+1462894+14611171(Top 39%)2572(Top 21%)2572(Top 150%)
Half13.11 mi0.68 mi12028+122894289412023(Top 42%)2973(Top 24%)2973(Top 173%)
25K15.53 mi2.42 mi11930+982887+72887+711678(Top 41%)2955(Top 24%)2955(Top 172%)
30K18.64 mi3.11 mi12018-883005-1183005-11812695(Top 45%)3663(Top 30%)3663(Top 213%)
20M20.00 mi1.36 mi12128-1103101-963101-9613706(Top 48%)4355(Top 36%)4355(Top 253%)
21M21.00 mi1.00 mi12322-1943249-1483249-14815073(Top 53%)5206(Top 43%)5206(Top 303%)
35K21.75 mi0.75 mi12313+93270-213270-2112717(Top 45%)4000(Top 33%)4000(Top 233%)
23M23.00 mi1.25 mi12405-923354-843354-8414343(Top 50%)4980(Top 41%)4980(Top 290%)
24M24.00 mi1.00 mi12525-1203434-803434-8014621(Top 51%)5157(Top 42%)5157(Top 300%)
40K24.85 mi0.85 mi12620-953516-823516-8214926(Top 53%)5471(Top 45%)5471(Top 318%)
25.2M25.20 mi0.35 mi12701-813577-613577-6117062(Top 60%)6600(Top 54%)6600(Top 384%)
Finish26.22 mi1.02 mi12841-1403671-943671-9416036(Top 56%)6031(Top 49%)6031(Top 351%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11465

Females

2619

F40-44

2619

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11929

Females

2781

F40-44

2781

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11465

Females

2619

F40-44

2619

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

11171

Females

2572

F40-44

2572

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

12023

Females

2973

F40-44

2973

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

11678

Females

2955

F40-44

2955

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

12695

Females

3663

F40-44

3663

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

13706

Females

4355

F40-44

4355

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

15073

Females

5206

F40-44

5206

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12717

Females

4000

F40-44

4000

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

14343

Females

4980

F40-44

4980

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

14621

Females

5157

F40-44

5157

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14926

Females

5471

F40-44

5471

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

17062

Females

6600

F40-44

6600

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

16036

Females

6031

F40-44

6031

Passing Analysis

Category:
Athletes Passed
2889
Passed By
1802
Net Change
+1087
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13928
5K → 10K106329+1034#13928#12894
10K → 15K54533+512#12894#12382
15K → 20K38442+342#12382#12040
20K → Half4331+12#12040#12028
Half → 25K209111+98#12028#11930
25K → 30K205293-88#11930#12018
30K → 20M85195-110#12018#12128
20M → 21M57251-194#12128#12322
21M → 35K6354+9#12322#12313
35K → 23M90182-92#12313#12405
23M → 24M43163-120#12405#12525
24M → 40K49144-95#12525#12620
40K → 25.2M1798-81#12620#12701
25.2M → Finish36176-140#12701#12841
TOTALS28891802+1087
📊

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