Boston Marathon logo
BOSTON MARATHON 2025

Alexandra Butler

Bib: 26054•F

MA

0:00
0:00
/ mi
Be the first to cheer!
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
10:43/mi
33:17
↑ 97↓ 3451.5%
10K· 6.21 mi
10:46/mi
1:06:43
↑ 79↓ 1380.4%
15K· 9.32 mi
10:57/mi
1:40:44
↑ 67↓ 78
20K· 12.43 mi
10:12/mi
2:12:26
↑ 106↓ 860.1%
Half· 13.11 mi
9:49/mi
2:19:08
↑ 19↓ 370.5%
25K· 15.53 mi
10:09/mi
2:43:44
↑ 66↓ 880.2%
30K· 18.64 mi
10:38/mi
3:16:46
↑ 181↓ 1480.2%
20M
10:07/mi
3:30:31
↑ 64↓ 500.2%
21M
10:15/mi
3:40:46
↑ 106↓ 241.6%
35K· 21.75 mi
9:07/mi
3:47:35
↑ 17↓ 861.7%
23M
10:15/mi
4:00:25
↑ 23↓ 630.6%
24M
9:23/mi
4:09:48
↓ 821.3%
40K· 24.85 mi
11:53/mi
4:19:58
↓ 200.3%
25.2M
10:58/mi
4:23:45
↑ 13↓ 160.2%
Finish· 26.22 mi
8:41/mi
4:32:36
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via Half
Distance13.11 mi
Time2:19:08
Pace10:37 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:13:28
Pace10:11 /mi
📊Negative Split: 4.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1333:1710:4333:17
10:43
-
10K
6.21 mi12:26:391:06:4310:4433:26
10:46
+0:03
15K
9.32 mi13:00:401:40:4410:4834:01
10:57
+0:11
20K
12.43 mi13:32:222:12:2610:3931:42
10:12
-0:45
Half
13.11 mi13:39:042:19:0810:376:42
9:49
-0:23
25K
15.53 mi14:03:402:43:4410:3224:36
10:09
+0:20
30K
18.64 mi14:36:423:16:4610:3333:02
10:38
+0:29
20M
20.00 mi14:50:273:30:3110:3213:45
10:07
-0:31
21M
21.00 mi15:00:423:40:4610:3110:15
10:15
+0:08
35K
21.75 mi15:07:313:47:3510:286:49
9:07
-1:08
23M
23.00 mi15:20:214:00:2510:2712:50
10:15
+1:08
24M
24.00 mi15:29:444:09:4810:259:23
9:23
-0:52
40K
24.85 mi15:39:544:19:5810:2810:10
11:53
+2:30
25.2M
25.20 mi15:43:414:23:4510:283:47
10:58
-0:55
Finish
26.22 mi15:52:324:32:3610:248:51
8:41
-2:17

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

8:41 /mi

Average Pace

10:24 /mi

Slowest Pace

11:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

31:45

12% of race

Time at Steady Pace

2:06:10

46% of race

Time at Slower Pace

1:54:41

42% of race

Average Pace: 10:24 /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 mi11:53:1333:1710:4333:17
10:43
#27149
10K
6.21 mi12:26:391:06:4310:4433:26
10:46
#26905
15K
9.32 mi13:00:401:40:4410:4834:01
10:57
#26809
20K
12.43 mi13:32:222:12:2610:3931:42
10:12
#26256
Half
13.11 mi13:39:042:19:0810:376:42
9:49
#26161
25K
15.53 mi14:03:402:43:4410:3224:36
10:09
#25757
30K
18.64 mi14:36:423:16:4610:3333:02
10:38
#25341
20M
20.00 mi14:50:273:30:3110:3213:45
10:07
#25117
21M
21.00 mi15:00:423:40:4610:3110:15
10:15
#24882
35K
21.75 mi15:07:313:47:3510:286:49
9:07
#24744
23M
23.00 mi15:20:214:00:2510:2712:50
10:15
#24605
24M
24.00 mi15:29:444:09:4810:259:23
9:23
#24437
40K
24.85 mi15:39:544:19:5810:2810:10
11:53
#24456
25.2M
25.20 mi15:43:414:23:4510:283:47
10:58
#24413
Finish
26.22 mi15:52:324:32:3610:248:51
8:41
#24239
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27149114151141526617(Top 94%)11140(Top 91%)11140(Top 204%)
10K6.21 mi3.10 mi26905+24411288+12711288+12726712(Top 94%)11176(Top 91%)11176(Top 204%)
15K9.32 mi3.11 mi26809+9611239+4911239+4926617(Top 94%)11140(Top 91%)11140(Top 204%)
20K12.43 mi3.11 mi26256+55310920+31910920+31924657(Top 87%)10081(Top 82%)10081(Top 184%)
Half13.11 mi0.68 mi26161+9510872+4810872+4824450(Top 86%)9971(Top 82%)9971(Top 182%)
25K15.53 mi2.42 mi25757+40410664+20810664+20823606(Top 83%)9534(Top 78%)9534(Top 174%)
30K18.64 mi3.11 mi25341+41610473+19110473+19123240(Top 82%)9459(Top 77%)9459(Top 173%)
20M20.00 mi1.36 mi25117+22410355+11810355+11821363(Top 75%)8562(Top 70%)8562(Top 157%)
21M21.00 mi1.00 mi24882+23510246+10910246+10919223(Top 68%)7458(Top 61%)7458(Top 136%)
35K21.75 mi0.75 mi24744+13810170+7610170+7618830(Top 66%)7381(Top 60%)7381(Top 135%)
23M23.00 mi1.25 mi24605+13910116+5410116+5421289(Top 75%)8702(Top 71%)8702(Top 159%)
24M24.00 mi1.00 mi24437+16810035+8110035+8119198(Top 68%)7659(Top 63%)7659(Top 140%)
40K24.85 mi0.85 mi24456-1910055-2010055-2024751(Top 87%)10550(Top 86%)10550(Top 193%)
25.2M25.20 mi0.35 mi24413+4310033+2210033+2220613(Top 73%)8491(Top 69%)8491(Top 155%)
Finish26.22 mi1.02 mi24239+1749963+709963+7017436(Top 61%)6792(Top 56%)6792(Top 124%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

26617

Females

11140

F18-39

11140

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

26712

Females

11176

F18-39

11176

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

26617

Females

11140

F18-39

11140

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

24657

Females

10081

F18-39

10081

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

24450

Females

9971

F18-39

9971

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

23606

Females

9534

F18-39

9534

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

23240

Females

9459

F18-39

9459

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

21363

Females

8562

F18-39

8562

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

19223

Females

7458

F18-39

7458

21M→35K

21.0 - 21.8 mi

Top 66%
×7story building
+17ft-86ft

Overall

18830

Females

7381

F18-39

7381

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

21289

Females

8702

F18-39

8702

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

19198

Females

7659

F18-39

7659

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

24751

Females

10550

F18-39

10550

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20613

Females

8491

F18-39

8491

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

17436

Females

6792

F18-39

6792

Passing Analysis

Category:
Athletes Passed
3095
Passed By
185
Net Change
+2910
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27149
5K → 10K29147+244#27149#26905
10K → 15K17175+96#26905#26809
15K → 20K5530+553#26809#26256
20K → Half950+95#26256#26161
Half → 25K4051+404#26161#25757
25K → 30K4193+416#25757#25341
30K → 20M2262+224#25341#25117
20M → 21M2350+235#25117#24882
21M → 35K1391+138#24882#24744
35K → 23M1445+139#24744#24605
23M → 24M1713+168#24605#24437
24M → 40K2746-19#24437#24456
40K → 25.2M452+43#24456#24413
25.2M → Finish1740+174#24413#24239
TOTALS3095185+2910
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing