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BOSTON MARATHON 2025

Heather King

Bib: 16876•F

NM

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
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
8:56/mi
27:46
↑ 97↓ 3451.5%
10K· 6.21 mi
8:44/mi
54:53
↑ 79↓ 1380.4%
15K· 9.32 mi
8:55/mi
1:22:34
↑ 67↓ 78
20K· 12.43 mi
9:15/mi
1:51:18
↑ 106↓ 860.1%
Half· 13.11 mi
8:56/mi
1:57:24
↑ 19↓ 370.5%
25K· 15.53 mi
9:23/mi
2:20:08
↑ 66↓ 880.2%
30K· 18.64 mi
10:04/mi
2:51:26
↑ 181↓ 1480.2%
20M
9:47/mi
3:04:44
↑ 64↓ 500.2%
21M
11:19/mi
3:16:03
↑ 106↓ 241.6%
35K· 21.75 mi
9:47/mi
3:23:22
↑ 17↓ 861.7%
23M
10:32/mi
3:36:33
↑ 23↓ 630.6%
24M
10:13/mi
3:46:46
↓ 821.3%
40K· 24.85 mi
10:11/mi
3:55:28
↓ 200.3%
25.2M
12:17/mi
3:59:42
↑ 13↓ 160.2%
Finish· 26.22 mi
9:24/mi
4:09:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:24
Pace8:57 /mi
2nd Half
Distance13.11 mi
Time2:11:53
Pace10:04 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:02:5327:468:5627:46
8:56
-
10K
6.21 mi11:30:0054:538:5027:07
8:44
-0:12
15K
9.32 mi11:57:411:22:348:5227:41
8:55
+0:11
20K
12.43 mi12:26:251:51:188:5728:44
9:15
+0:20
Half
13.11 mi12:32:311:57:248:576:06
8:56
-0:19
25K
15.53 mi12:55:152:20:089:0122:44
9:23
+0:27
30K
18.64 mi13:26:332:51:269:1231:18
10:04
+0:41
20M
20.00 mi13:39:513:04:449:1413:18
9:47
-0:17
21M
21.00 mi13:51:103:16:039:2011:19
11:19
+1:32
35K
21.75 mi13:58:293:23:229:217:19
9:47
-1:32
23M
23.00 mi14:11:403:36:339:2513:11
10:32
+0:45
24M
24.00 mi14:21:533:46:469:2710:13
10:13
-0:19
40K
24.85 mi14:30:353:55:289:288:42
10:11
-0:02
25.2M
25.20 mi14:34:493:59:429:314:14
12:17
+2:06
Finish
26.22 mi14:44:244:09:179:319:35
9:24
-2:53

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

8:44 /mi

Average Pace

9:31 /mi

Slowest Pace

12:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:24

47% of race

Time at Steady Pace

1:43:09

41% of race

Time at Slower Pace

28:44

12% of race

Average Pace: 9:30 /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 mi11:02:5327:468:5627:46
8:56
#22169
10K
6.21 mi11:30:0054:538:5027:07
8:44
#21626
15K
9.32 mi11:57:411:22:348:5227:41
8:55
#21581
20K
12.43 mi12:26:251:51:188:5728:44
9:15
#21738
Half
13.11 mi12:32:311:57:248:576:06
8:56
#21715
25K
15.53 mi12:55:152:20:089:0122:44
9:23
#21648
30K
18.64 mi13:26:332:51:269:1231:18
10:04
#21736
20M
20.00 mi13:39:513:04:449:1413:18
9:47
#21621
21M
21.00 mi13:51:103:16:039:2011:19
11:19
#21668
35K
21.75 mi13:58:293:23:229:217:19
9:47
#21652
23M
23.00 mi14:11:403:36:339:2513:11
10:32
#21665
24M
24.00 mi14:21:533:46:469:2710:13
10:13
#21689
40K
24.85 mi14:30:353:55:289:288:42
10:11
#21658
25.2M
25.20 mi14:34:493:59:429:314:14
12:17
#21699
Finish
26.22 mi14:44:244:09:179:319:35
9:24
#21643
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi221698718871821625(Top 76%)8346(Top 68%)8346(Top 641%)
10K6.21 mi3.10 mi21626+5438404+3148404+31421054(Top 74%)8049(Top 66%)8049(Top 618%)
15K9.32 mi3.11 mi21581+458352+528352+5221625(Top 76%)8346(Top 68%)8346(Top 641%)
20K12.43 mi3.11 mi21738-1578458-1068458-10622083(Top 78%)8629(Top 71%)8629(Top 662%)
Half13.11 mi0.68 mi21715+238448+108448+1021615(Top 76%)8384(Top 69%)8384(Top 643%)
25K15.53 mi2.42 mi21648+678409+398409+3921470(Top 76%)8345(Top 68%)8345(Top 640%)
30K18.64 mi3.11 mi21736-888476-678476-6721812(Top 77%)8676(Top 71%)8676(Top 666%)
20M20.00 mi1.36 mi21621+1158433+438433+4320275(Top 71%)7954(Top 65%)7954(Top 610%)
21M21.00 mi1.00 mi21668-478483-508483-5022194(Top 78%)9074(Top 74%)9074(Top 696%)
35K21.75 mi0.75 mi21652+168481+28481+221288(Top 75%)8662(Top 71%)8662(Top 665%)
23M23.00 mi1.25 mi21665-138528-478528-4722103(Top 78%)9118(Top 75%)9118(Top 700%)
24M24.00 mi1.00 mi21689-248562-348562-3421990(Top 77%)9126(Top 75%)9126(Top 700%)
40K24.85 mi0.85 mi21658+318573-118573-1121020(Top 74%)8678(Top 71%)8678(Top 666%)
25.2M25.20 mi0.35 mi21699-418608-358608-3523776(Top 84%)10050(Top 82%)10050(Top 771%)
Finish26.22 mi1.02 mi21643+568585+238585+2320855(Top 73%)8590(Top 70%)8590(Top 659%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

21625

Females

8346

F50-54

8346

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

21054

Females

8049

F50-54

8049

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

21625

Females

8346

F50-54

8346

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

22083

Females

8629

F50-54

8629

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

21615

Females

8384

F50-54

8384

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

21470

Females

8345

F50-54

8345

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

21812

Females

8676

F50-54

8676

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20275

Females

7954

F50-54

7954

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

22194

Females

9074

F50-54

9074

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

21288

Females

8662

F50-54

8662

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

22103

Females

9118

F50-54

9118

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

21990

Females

9126

F50-54

9126

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

21020

Females

8678

F50-54

8678

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23776

Females

10050

F50-54

10050

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

20855

Females

8590

F50-54

8590

Passing Analysis

Category:
Athletes Passed
1949
Passed By
1423
Net Change
+526
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22169
5K → 10K62683+543#22169#21626
10K → 15K233188+45#21626#21581
15K → 20K141298-157#21581#21738
20K → Half4623+23#21738#21715
Half → 25K175108+67#21715#21648
25K → 30K169257-88#21648#21736
30K → 20M15439+115#21736#21621
20M → 21M71118-47#21621#21668
21M → 35K4832+16#21668#21652
35K → 23M8396-13#21652#21665
23M → 24M4569-24#21665#21689
24M → 40K7039+31#21689#21658
40K → 25.2M1152-41#21658#21699
25.2M → Finish7721+56#21699#21643
TOTALS19491423+526
📊

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