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BOSTON MARATHON 2025

Hillary Sapanski

DC

Bib: 14774 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 40%
Gender (Female)
#0 / 12228
Top 24%
Division (F18-39)
#0 / 5469
Top 41%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:50/mi
24:19
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:46/mi
48:26
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:44/mi
1:12:29
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:39/mi
1:36:16
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:26/mi
1:41:20
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:39/mi
1:59:52
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:51/mi
2:24:14
↑ 181↓ 1480.2%
138 ft elev
20M
7:41/mi
2:34:41
↑ 64↓ 500.2%
148 ft elev
21M
7:56/mi
2:42:37
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:45/mi
2:48:25
↑ 17↓ 861.7%
156 ft elev
23M
8:16/mi
2:58:46
↑ 23↓ 630.6%
116 ft elev
24M
8:04/mi
3:06:50
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:53/mi
3:13:34
↓ 200.3%
20 ft elev
25.2M
8:16/mi
3:16:25
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:28/mi
3:24:02
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:20
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:42:42
Pace7:50 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5224:197:5024:19
7:50
-
10K
6.21 mi11:18:5948:267:4824:07
7:46
-0:04
15K
9.32 mi11:43:021:12:297:4724:03
7:44
-0:02
20K
12.43 mi12:06:491:36:167:4523:47
7:39
-0:05
Half
13.11 mi12:11:531:41:207:445:04
7:26
-0:13
25K
15.53 mi12:30:251:59:527:4318:32
7:39
+0:13
30K
18.64 mi12:54:472:24:147:4424:22
7:51
+0:12
20M
20.00 mi13:05:142:34:417:4410:27
7:41
-0:10
21M
21.00 mi13:13:102:42:377:457:56
7:56
+0:15
35K
21.75 mi13:18:582:48:257:455:48
7:45
-0:11
23M
23.00 mi13:29:192:58:467:4610:21
8:16
+0:31
24M
24.00 mi13:37:233:06:507:478:04
8:04
-0:12
40K
24.85 mi13:44:073:13:347:476:44
7:53
-0:11
25.2M
25.20 mi13:46:583:16:257:482:51
8:16
+0:23
Finish
26.22 mi13:54:353:24:027:477:37
7:28
-0:48

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

7:26 /mi

Average Pace

7:47 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:50

94% of race

Time at Steady Pace

13:12

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:47 /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 mi10:54:5224:197:5024:19
7:50
#15059
10K
6.21 mi11:18:5948:267:4824:07
7:46
#14740
15K
9.32 mi11:43:021:12:297:4724:03
7:44
#14432
20K
12.43 mi12:06:491:36:167:4523:47
7:39
#13766
Half
13.11 mi12:11:531:41:207:445:04
7:26
#13624
25K
15.53 mi12:30:251:59:527:4318:32
7:39
#13157
30K
18.64 mi12:54:472:24:147:4424:22
7:51
#12573
20M
20.00 mi13:05:142:34:417:4410:27
7:41
#12188
21M
21.00 mi13:13:102:42:377:457:56
7:56
#11844
35K
21.75 mi13:18:582:48:257:455:48
7:45
#11776
23M
23.00 mi13:29:192:58:467:4610:21
8:16
#11741
24M
24.00 mi13:37:233:06:507:478:04
8:04
#11725
40K
24.85 mi13:44:073:13:347:476:44
7:53
#11589
25.2M
25.20 mi13:46:583:16:257:482:51
8:16
#11485
Finish
26.22 mi13:54:353:24:027:477:37
7:28
#11347
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi150594561456113870(Top 49%)3933(Top 32%)3933(Top 72%)
10K6.21 mi3.10 mi14740+3194391+1704391+17014468(Top 51%)4226(Top 35%)4226(Top 77%)
15K9.32 mi3.11 mi14432+3084217+1744217+17413870(Top 49%)3933(Top 32%)3933(Top 72%)
20K12.43 mi3.11 mi13766+6663875+3423875+34212006(Top 42%)3001(Top 25%)3001(Top 55%)
Half13.11 mi0.68 mi13624+1423801+743801+7411185(Top 39%)2526(Top 21%)2526(Top 46%)
25K15.53 mi2.42 mi13157+4673564+2373564+23711109(Top 39%)2642(Top 22%)2642(Top 48%)
30K18.64 mi3.11 mi12573+5843310+2543310+25410255(Top 36%)2414(Top 20%)2414(Top 44%)
20M20.00 mi1.36 mi12188+3853131+1793131+1798322(Top 29%)1686(Top 14%)1686(Top 31%)
21M21.00 mi1.00 mi11844+3442991+1402991+1407028(Top 25%)1326(Top 11%)1326(Top 24%)
35K21.75 mi0.75 mi11776+682970+212970+2110507(Top 37%)2858(Top 23%)2858(Top 52%)
23M23.00 mi1.25 mi11741+353002-323002-3211835(Top 42%)3646(Top 30%)3646(Top 67%)
24M24.00 mi1.00 mi11725+163037-353037-3511710(Top 41%)3663(Top 30%)3663(Top 67%)
40K24.85 mi0.85 mi11589+1362992+452992+459336(Top 33%)2610(Top 21%)2610(Top 48%)
25.2M25.20 mi0.35 mi11485+1042959+332959+337551(Top 27%)1891(Top 15%)1891(Top 35%)
Finish26.22 mi1.02 mi11347+1382924+352924+359046(Top 32%)2564(Top 21%)2564(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

13870

Females

3933

F18-39

3933

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

14468

Females

4226

F18-39

4226

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

13870

Females

3933

F18-39

3933

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

12006

Females

3001

F18-39

3001

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

11185

Females

2526

F18-39

2526

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

11109

Females

2642

F18-39

2642

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

10255

Females

2414

F18-39

2414

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

8322

Females

1686

F18-39

1686

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

7028

Females

1326

F18-39

1326

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

10507

Females

2858

F18-39

2858

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11835

Females

3646

F18-39

3646

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11710

Females

3663

F18-39

3663

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9336

Females

2610

F18-39

2610

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7551

Females

1891

F18-39

1891

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

9046

Females

2564

F18-39

2564

Passing Analysis

Category:
Athletes Passed
4198
Passed By
486
Net Change
+3712
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15059
5K → 10K478159+319#15059#14740
10K → 15K36961+308#14740#14432
15K → 20K6726+666#14432#13766
20K → Half1431+142#13766#13624
Half → 25K4692+467#13624#13157
25K → 30K60723+584#13157#12573
30K → 20M3861+385#12573#12188
20M → 21M3473+344#12188#11844
21M → 35K9022+68#11844#11776
35K → 23M12489+35#11776#11741
23M → 24M8771+16#11741#11725
24M → 40K15721+136#11725#11589
40K → 25.2M1073+104#11589#11485
25.2M → Finish16224+138#11485#11347
TOTALS4198486+3712
📊

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