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BOSTON MARATHON 2025

Katie Heidke

Bib: 17978•F

WI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 38%
Gender (Female)
#0 / 12228
Top 21%
Division (F18-39)
#0 / 5469
Top 37%
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
7:40/mi
23:49
↑ 97↓ 3451.5%
10K· 6.21 mi
7:38/mi
47:31
↑ 79↓ 1380.4%
15K· 9.32 mi
7:33/mi
1:10:59
↑ 67↓ 78
20K· 12.43 mi
7:35/mi
1:34:34
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:39:40
↑ 19↓ 370.5%
25K· 15.53 mi
7:34/mi
1:58:01
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:22:00
↑ 181↓ 1480.2%
20M
7:58/mi
2:32:50
↑ 64↓ 500.2%
21M
8:54/mi
2:41:44
↑ 106↓ 241.6%
35K· 21.75 mi
7:48/mi
2:47:34
↑ 17↓ 861.7%
23M
7:54/mi
2:57:27
↑ 23↓ 630.6%
24M
7:34/mi
3:05:01
↓ 821.3%
40K· 24.85 mi
7:42/mi
3:11:36
↓ 200.3%
25.2M
8:19/mi
3:14:28
↑ 13↓ 160.2%
Finish· 26.22 mi
7:25/mi
3:22:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:40
Pace7:36 /mi
2nd Half
Distance13.11 mi
Time1:42:21
Pace7:48 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:2023:497:4023:49
7:40
-
10K
6.21 mi11:38:0247:317:3923:42
7:38
-0:02
15K
9.32 mi12:01:301:10:597:3723:28
7:33
-0:05
20K
12.43 mi12:25:051:34:347:3723:35
7:35
+0:02
Half
13.11 mi12:30:111:39:407:365:06
7:29
-0:06
25K
15.53 mi12:48:321:58:017:3618:21
7:34
+0:05
30K
18.64 mi13:12:312:22:007:3723:59
7:43
+0:09
20M
20.00 mi13:23:212:32:507:3810:50
7:58
+0:15
21M
21.00 mi13:32:152:41:447:428:54
8:54
+0:56
35K
21.75 mi13:38:052:47:347:425:50
7:48
-1:06
23M
23.00 mi13:47:582:57:277:439:53
7:54
+0:06
24M
24.00 mi13:55:323:05:017:437:34
7:34
-0:20
40K
24.85 mi14:02:073:11:367:436:35
7:42
+0:08
25.2M
25.20 mi14:04:593:14:287:432:52
8:19
+0:37
Finish
26.22 mi14:12:323:22:017:437:33
7:25
-0:54

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

7:25 /mi

Average Pace

7:43 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:15

94% of race

Time at Steady Pace

2:52

1% of race

Time at Slower Pace

8:54

4% of race

Average Pace: 7:42 /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 mi11:14:2023:497:4023:49
7:40
#13664
10K
6.21 mi11:38:0247:317:3923:42
7:38
#13470
15K
9.32 mi12:01:301:10:597:3723:28
7:33
#12999
20K
12.43 mi12:25:051:34:347:3723:35
7:35
#12571
Half
13.11 mi12:30:111:39:407:365:06
7:29
#12520
25K
15.53 mi12:48:321:58:017:3618:21
7:34
#12157
30K
18.64 mi13:12:312:22:007:3723:59
7:43
#11566
20M
20.00 mi13:23:212:32:507:3810:50
7:58
#11418
21M
21.00 mi13:32:152:41:447:428:54
8:54
#11480
35K
21.75 mi13:38:052:47:347:425:50
7:48
#11440
23M
23.00 mi13:47:582:57:277:439:53
7:54
#11271
24M
24.00 mi13:55:323:05:017:437:34
7:34
#11073
40K
24.85 mi14:02:073:11:367:436:35
7:42
#10930
25.2M
25.20 mi14:04:593:14:287:432:52
8:19
#10868
Finish
26.22 mi14:12:323:22:017:437:33
7:25
#10736
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi136643684368412219(Top 43%)3030(Top 25%)3030(Top 55%)
10K6.21 mi3.10 mi13470+1943631+533631+5313272(Top 47%)3536(Top 29%)3536(Top 65%)
15K9.32 mi3.11 mi12999+4713388+2433388+24312219(Top 43%)3030(Top 25%)3030(Top 55%)
20K12.43 mi3.11 mi12571+4283186+2023186+20211530(Top 41%)2755(Top 23%)2755(Top 50%)
Half13.11 mi0.68 mi12520+513157+293157+2911547(Top 41%)2706(Top 22%)2706(Top 49%)
25K15.53 mi2.42 mi12157+3633004+1533004+15310517(Top 37%)2334(Top 19%)2334(Top 43%)
30K18.64 mi3.11 mi11566+5912766+2382766+2389342(Top 33%)1983(Top 16%)1983(Top 36%)
20M20.00 mi1.36 mi11418+1482731+352731+3510273(Top 36%)2574(Top 21%)2574(Top 47%)
21M21.00 mi1.00 mi11480-622804-732804-7312932(Top 46%)4075(Top 33%)4075(Top 75%)
35K21.75 mi0.75 mi11440+402809-52809-510830(Top 38%)3013(Top 25%)3013(Top 55%)
23M23.00 mi1.25 mi11271+1692760+492760+499269(Top 33%)2385(Top 20%)2385(Top 44%)
24M24.00 mi1.00 mi11073+1982695+652695+658213(Top 29%)1967(Top 16%)1967(Top 36%)
40K24.85 mi0.85 mi10930+1432657+382657+388127(Top 29%)2054(Top 17%)2054(Top 38%)
25.2M25.20 mi0.35 mi10868+622638+192638+197800(Top 27%)1989(Top 16%)1989(Top 36%)
Finish26.22 mi1.02 mi10736+1322599+392599+398584(Top 30%)2331(Top 19%)2331(Top 43%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

12219

Females

3030

F18-39

3030

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

13272

Females

3536

F18-39

3536

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

12219

Females

3030

F18-39

3030

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11530

Females

2755

F18-39

2755

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11547

Females

2706

F18-39

2706

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

10517

Females

2334

F18-39

2334

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

9342

Females

1983

F18-39

1983

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

10273

Females

2574

F18-39

2574

20M→21M

20.0 - 21.0 mi

Top 46%
×8story building
+106ft-24ft

Overall

12932

Females

4075

F18-39

4075

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10830

Females

3013

F18-39

3013

35K→23M

21.8 - 23.0 mi

Top 33%
×5story building
+23ft-63ft

Overall

9269

Females

2385

F18-39

2385

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

8213

Females

1967

F18-39

1967

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8127

Females

2054

F18-39

2054

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7800

Females

1989

F18-39

1989

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8584

Females

2331

F18-39

2331

Passing Analysis

Category:
Athletes Passed
3551
Passed By
623
Net Change
+2928
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13664
5K → 10K388194+194#13664#13470
10K → 15K51039+471#13470#12999
15K → 20K46436+428#12999#12571
20K → Half6110+51#12571#12520
Half → 25K38118+363#12520#12157
25K → 30K60514+591#12157#11566
30K → 20M19749+148#11566#11418
20M → 21M77139-62#11418#11480
21M → 35K8242+40#11480#11440
35K → 23M19829+169#11440#11271
23M → 24M2057+198#11271#11073
24M → 40K16219+143#11073#10930
40K → 25.2M719+62#10930#10868
25.2M → Finish15018+132#10868#10736
TOTALS3551623+2928
📊

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