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BOSTON MARATHON 2025

Kylie Bemis

Bib: 8478•F

MA

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
7:54/mi
24:33
↑ 97↓ 3451.5%
10K· 6.21 mi
8:30/mi
50:58
↑ 79↓ 1380.4%
15K· 9.32 mi
9:12/mi
1:19:34
↑ 67↓ 78
20K· 12.43 mi
9:09/mi
1:48:01
↑ 106↓ 860.1%
Half· 13.11 mi
8:17/mi
1:53:40
↑ 19↓ 370.5%
25K· 15.53 mi
9:54/mi
2:17:40
↑ 66↓ 880.2%
30K· 18.64 mi
10:10/mi
2:49:15
↑ 181↓ 1480.2%
20M
10:53/mi
3:04:03
↑ 64↓ 500.2%
21M
12:21/mi
3:16:24
↑ 106↓ 241.6%
35K· 21.75 mi
10:12/mi
3:24:02
↑ 17↓ 861.7%
23M
14:19/mi
3:41:57
↑ 23↓ 630.6%
24M
10:29/mi
3:52:26
↓ 821.3%
40K· 24.85 mi
12:51/mi
4:03:25
↓ 200.3%
25.2M
14:04/mi
4:08:16
↑ 13↓ 160.2%
Finish· 26.22 mi
10:37/mi
4:19:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:40
Pace8:40 /mi
2nd Half
Distance13.11 mi
Time2:25:25
Pace11:06 /mi
📊Positive Split: 27.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:32:2424:337:5424:33
7:54
-
10K
6.21 mi10:58:4950:588:1226:25
8:30
+0:36
15K
9.32 mi11:27:251:19:348:3228:36
9:12
+0:42
20K
12.43 mi11:55:521:48:018:4228:27
9:09
-0:03
Half
13.11 mi12:01:311:53:408:405:39
8:17
-0:52
25K
15.53 mi12:25:312:17:408:5224:00
9:54
+1:37
30K
18.64 mi12:57:062:49:159:0531:35
10:10
+0:16
20M
20.00 mi13:11:543:04:039:1214:48
10:53
+0:43
21M
21.00 mi13:24:153:16:249:2112:21
12:21
+1:28
35K
21.75 mi13:31:533:24:029:237:38
10:12
-2:09
23M
23.00 mi13:49:483:41:579:3917:55
14:19
+4:07
24M
24.00 mi14:00:173:52:269:4110:29
10:29
-3:50
40K
24.85 mi14:11:164:03:259:4810:59
12:51
+2:22
25.2M
25.20 mi14:16:074:08:169:514:51
14:04
+1:13
Finish
26.22 mi14:26:564:19:059:5310:49
10:37
-3:27

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

7:54 /mi

Average Pace

9:53 /mi

Slowest Pace

14:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:40

44% of race

Time at Steady Pace

1:39:19

38% of race

Time at Slower Pace

46:06

18% of race

Average Pace: 9:53 /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 mi10:32:2424:337:5424:33
7:54
#15735
10K
6.21 mi10:58:4950:588:1226:25
8:30
#18006
15K
9.32 mi11:27:251:19:348:3228:36
9:12
#19904
20K
12.43 mi11:55:521:48:018:4228:27
9:09
#20369
Half
13.11 mi12:01:311:53:408:405:39
8:17
#20249
25K
15.53 mi12:25:312:17:408:5224:00
9:54
#20922
30K
18.64 mi12:57:062:49:159:0531:35
10:10
#21242
20M
20.00 mi13:11:543:04:039:1214:48
10:53
#21475
21M
21.00 mi13:24:153:16:249:2112:21
12:21
#21731
35K
21.75 mi13:31:533:24:029:237:38
10:12
#21778
23M
23.00 mi13:49:483:41:579:3917:55
14:19
#22448
24M
24.00 mi14:00:173:52:269:4110:29
10:29
#22444
40K
24.85 mi14:11:164:03:259:4810:59
12:51
#22652
25.2M
25.20 mi14:16:074:08:169:514:51
14:04
#22747
Finish
26.22 mi14:26:564:19:059:5310:49
10:37
#22843
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi157354987498722884(Top 81%)9039(Top 74%)9039(Top 165%)
10K6.21 mi3.10 mi18006-22716333-13466333-134619830(Top 70%)7379(Top 60%)7379(Top 135%)
15K9.32 mi3.11 mi19904-18987413-10807413-108022884(Top 81%)9039(Top 74%)9039(Top 165%)
20K12.43 mi3.11 mi20369-4657686-2737686-27321727(Top 76%)8447(Top 69%)8447(Top 154%)
Half13.11 mi0.68 mi20249+1207628+587628+5817898(Top 63%)6277(Top 51%)6277(Top 115%)
25K15.53 mi2.42 mi20922-6738001-3738001-37323007(Top 81%)9196(Top 75%)9196(Top 168%)
30K18.64 mi3.11 mi21242-3208213-2128213-21222105(Top 78%)8821(Top 72%)8821(Top 161%)
20M20.00 mi1.36 mi21475-2338359-1468359-14623377(Top 82%)9612(Top 79%)9612(Top 176%)
21M21.00 mi1.00 mi21731-2568514-1558514-15524182(Top 85%)10125(Top 83%)10125(Top 185%)
35K21.75 mi0.75 mi21778-478561-478561-4722459(Top 79%)9269(Top 76%)9269(Top 169%)
23M23.00 mi1.25 mi22448-6708966-4058966-40527549(Top 97%)11880(Top 97%)11880(Top 217%)
24M24.00 mi1.00 mi22444+48981-158981-1522782(Top 80%)9529(Top 78%)9529(Top 174%)
40K24.85 mi0.85 mi22652-2089115-1349115-13426136(Top 92%)11210(Top 92%)11210(Top 205%)
25.2M25.20 mi0.35 mi22747-959174-599174-5926369(Top 93%)11363(Top 93%)11363(Top 208%)
Finish26.22 mi1.02 mi22843-969243-699243-6924547(Top 86%)10426(Top 85%)10426(Top 191%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

22884

Females

9039

F18-39

9039

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

19830

Females

7379

F18-39

7379

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

22884

Females

9039

F18-39

9039

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

21727

Females

8447

F18-39

8447

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

17898

Females

6277

F18-39

6277

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

23007

Females

9196

F18-39

9196

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

22105

Females

8821

F18-39

8821

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

23377

Females

9612

F18-39

9612

20M→21M

20.0 - 21.0 mi

Top 85%
×8story building
+106ft-24ft

Overall

24182

Females

10125

F18-39

10125

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

22459

Females

9269

F18-39

9269

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

27549

Females

11880

F18-39

11880

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22782

Females

9529

F18-39

9529

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26136

Females

11210

F18-39

11210

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

26369

Females

11363

F18-39

11363

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

24547

Females

10426

F18-39

10426

Passing Analysis

Category:
Athletes Passed
579
Passed By
7687
Net Change
-7108
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15735
5K → 10K142285-2271#15735#18006
10K → 15K91907-1898#18006#19904
15K → 20K74539-465#19904#20369
20K → Half1222+120#20369#20249
Half → 25K34707-673#20249#20922
25K → 30K122442-320#20922#21242
30K → 20M44277-233#21242#21475
20M → 21M25281-256#21475#21731
21M → 35K3279-47#21731#21778
35K → 23M16686-670#21778#22448
23M → 24M6056+4#22448#22444
24M → 40K7215-208#22444#22652
40K → 25.2M398-95#22652#22747
25.2M → Finish17113-96#22747#22843
TOTALS5797687-7108
📊

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