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BOSTON MARATHON 2025

Alexa Mcmillan

Bib: 15461•F

BC

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 40%
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
7:07/mi
22:06
↑ 97↓ 3451.5%
10K· 6.21 mi
7:12/mi
44:27
↑ 79↓ 1380.4%
15K· 9.32 mi
7:21/mi
1:07:18
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:31:16
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:36:32
↑ 19↓ 370.5%
25K· 15.53 mi
7:49/mi
1:55:29
↑ 66↓ 880.2%
30K· 18.64 mi
8:12/mi
2:20:57
↑ 181↓ 1480.2%
20M
8:26/mi
2:32:24
↑ 64↓ 500.2%
21M
8:52/mi
2:41:16
↑ 106↓ 241.6%
35K· 21.75 mi
7:53/mi
2:47:10
↑ 17↓ 861.7%
23M
8:14/mi
2:57:29
↑ 23↓ 630.6%
24M
8:10/mi
3:05:39
↓ 821.3%
40K· 24.85 mi
8:07/mi
3:12:35
↓ 200.3%
25.2M
9:05/mi
3:15:43
↑ 13↓ 160.2%
Finish· 26.22 mi
7:53/mi
3:23:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:32
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:47:13
Pace8:11 /mi
📊Positive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1122:067:0722:06
7:07
-
10K
6.21 mi11:16:3244:277:0922:21
7:12
+0:05
15K
9.32 mi11:39:231:07:187:1322:51
7:21
+0:09
20K
12.43 mi12:03:211:31:167:2123:58
7:43
+0:22
Half
13.11 mi12:08:371:36:327:225:16
7:43
0:00
25K
15.53 mi12:27:341:55:297:2618:57
7:49
+0:06
30K
18.64 mi12:53:022:20:577:3425:28
8:12
+0:23
20M
20.00 mi13:04:292:32:247:3711:27
8:26
+0:14
21M
21.00 mi13:13:212:41:167:418:52
8:52
+0:26
35K
21.75 mi13:19:152:47:107:415:54
7:53
-0:59
23M
23.00 mi13:29:342:57:297:4310:19
8:14
+0:21
24M
24.00 mi13:37:443:05:397:448:10
8:10
-0:04
40K
24.85 mi13:44:403:12:357:456:56
8:07
-0:03
25.2M
25.20 mi13:47:483:15:437:463:08
9:05
+0:58
Finish
26.22 mi13:55:503:23:457:478:02
7:53
-1:12

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

7:07 /mi

Average Pace

7:47 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:07:18

33% of race

Time at Steady Pace

1:09:03

34% of race

Time at Slower Pace

1:07:24

33% of race

Average Pace: 7:46 /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 mi10:54:1122:067:0722:06
7:07
#8790
10K
6.21 mi11:16:3244:277:0922:21
7:12
#9075
15K
9.32 mi11:39:231:07:187:1322:51
7:21
#9506
20K
12.43 mi12:03:211:31:167:2123:58
7:43
#10255
Half
13.11 mi12:08:371:36:327:225:16
7:43
#10435
25K
15.53 mi12:27:341:55:297:2618:57
7:49
#10743
30K
18.64 mi12:53:022:20:577:3425:28
8:12
#11128
20M
20.00 mi13:04:292:32:247:3711:27
8:26
#11255
21M
21.00 mi13:13:212:41:167:418:52
8:52
#11299
35K
21.75 mi13:19:152:47:107:415:54
7:53
#11289
23M
23.00 mi13:29:342:57:297:4310:19
8:14
#11282
24M
24.00 mi13:37:443:05:397:448:10
8:10
#11290
40K
24.85 mi13:44:403:12:357:456:56
8:07
#11247
25.2M
25.20 mi13:47:483:15:437:463:08
9:05
#11253
Finish
26.22 mi13:55:503:23:457:478:02
7:53
#11257
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi87901288128810473(Top 37%)2108(Top 17%)2108(Top 39%)
10K6.21 mi3.10 mi9075-2851410-1221410-1229457(Top 33%)1586(Top 13%)1586(Top 29%)
15K9.32 mi3.11 mi9506-4311602-1921602-19210473(Top 37%)2108(Top 17%)2108(Top 39%)
20K12.43 mi3.11 mi10255-7491989-3871989-38712549(Top 44%)3295(Top 27%)3295(Top 60%)
Half13.11 mi0.68 mi10435-1802077-882077-8813562(Top 48%)3784(Top 31%)3784(Top 69%)
25K15.53 mi2.42 mi10743-3082256-1792256-17912490(Top 44%)3385(Top 28%)3385(Top 62%)
30K18.64 mi3.11 mi11128-3852531-2752531-27512806(Top 45%)3716(Top 30%)3716(Top 68%)
20M20.00 mi1.36 mi11255-1272639-1082639-10813320(Top 47%)4144(Top 34%)4144(Top 76%)
21M21.00 mi1.00 mi11299-442708-692708-6912718(Top 45%)3979(Top 33%)3979(Top 73%)
35K21.75 mi0.75 mi11289+102731-232731-2311482(Top 40%)3354(Top 27%)3354(Top 61%)
23M23.00 mi1.25 mi11282+72765-342765-3411658(Top 41%)3556(Top 29%)3556(Top 65%)
24M24.00 mi1.00 mi11290-82815-502815-5012361(Top 44%)3967(Top 32%)3967(Top 73%)
40K24.85 mi0.85 mi11247+432820-52820-510965(Top 39%)3382(Top 28%)3382(Top 62%)
25.2M25.20 mi0.35 mi11253-62845-252845-2512307(Top 43%)4106(Top 34%)4106(Top 75%)
Finish26.22 mi1.02 mi11257-42886-412886-4112070(Top 42%)3958(Top 32%)3958(Top 72%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

10473

Females

2108

F18-39

2108

5K→10K

3.1 - 6.2 mi

Top 33%
×5story building
+79ft-138ft

Overall

9457

Females

1586

F18-39

1586

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

10473

Females

2108

F18-39

2108

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

12549

Females

3295

F18-39

3295

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13562

Females

3784

F18-39

3784

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

12490

Females

3385

F18-39

3385

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

12806

Females

3716

F18-39

3716

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

13320

Females

4144

F18-39

4144

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12718

Females

3979

F18-39

3979

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

11482

Females

3354

F18-39

3354

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

11658

Females

3556

F18-39

3556

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

12361

Females

3967

F18-39

3967

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10965

Females

3382

F18-39

3382

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12307

Females

4106

F18-39

4106

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

12070

Females

3958

F18-39

3958

Passing Analysis

Category:
Athletes Passed
1063
Passed By
3528
Net Change
-2467
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8790
5K → 10K108393-285#8790#9075
10K → 15K55486-431#9075#9506
15K → 20K50797-749#9506#10255
20K → Half8188-180#10255#10435
Half → 25K90398-308#10435#10743
25K → 30K132517-385#10743#11128
30K → 20M80207-127#11128#11255
20M → 21M76120-44#11255#11299
21M → 35K6555+10#11299#11289
35K → 23M114107+7#11289#11282
23M → 24M8694-8#11282#11290
24M → 40K8643+43#11290#11247
40K → 25.2M3642-6#11247#11253
25.2M → Finish7781-4#11253#11257
TOTALS10633528-2467
📊

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