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BOSTON MARATHON 2025

Alexandra Spence

Bib: 19780•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 44%
Masters (Masters Women)
#0 / 6759
Top 30%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:06
Rank: #17227
Start → 5K
25:06 | 8:05/mi
10K· 6.21 mi
50:04
Rank: #16963 (+264)
5K → 10K
24:58 | 8:02/mi
15K· 9.32 mi
1:15:09
Rank: #16802 (+161)
10K → 15K
25:05 | 8:04/mi
20K· 12.43 mi
1:40:19
Rank: #16476 (+326)
15K → 20K
25:10 | 8:06/mi
Half· 13.11 mi
1:45:44
Rank: #16425 (+51)
20K → Half
5:25 | 7:56/mi
25K· 15.53 mi
2:05:26
Rank: #16133 (+292)
Half → 25K
19:42 | 8:08/mi
30K· 18.64 mi
2:31:55
Rank: #15870 (+263)
25K → 30K
26:29 | 8:31/mi
20M
2:43:54
Rank: #15831 (+39)
30K → 20M
11:59 | 8:49/mi
21M
2:53:11
Rank: #15732 (+99)
20M → 21M
9:17 | 9:17/mi
35K· 21.75 mi
2:59:40
Rank: #15735 (-3)
21M → 35K
6:29 | 8:40/mi
23M
3:11:01
Rank: #15724 (+11)
35K → 23M
11:21 | 9:04/mi
24M
3:20:03
Rank: #15805 (-81)
23M → 24M
9:02 | 9:02/mi
40K· 24.85 mi
3:27:34
Rank: #15749 (+56)
24M → 40K
7:31 | 8:47/mi
25.2M
3:30:58
Rank: #15750 (-1)
40K → 25.2M
3:24 | 9:52/mi
Finish· 26.22 mi
3:39:42
Rank: #15794 (-44)
25.2M → Finish
8:44 | 8:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:44
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:53:58
Pace8:42 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:1025:068:0525:06
8:05
-
10K
6.21 mi11:46:0850:048:0324:58
8:02
-0:03
15K
9.32 mi12:11:131:15:098:0425:05
8:04
+0:02
20K
12.43 mi12:36:231:40:198:0425:10
8:06
+0:02
Half
13.11 mi12:41:481:45:448:045:25
7:56
-0:10
25K
15.53 mi13:01:302:05:268:0419:42
8:08
+0:12
30K
18.64 mi13:27:592:31:558:0926:29
8:31
+0:23
20M
20.00 mi13:39:582:43:548:1211:59
8:49
+0:18
21M
21.00 mi13:49:152:53:118:159:17
9:17
+0:28
35K
21.75 mi13:55:442:59:408:166:29
8:40
-0:37
23M
23.00 mi14:07:053:11:018:1811:21
9:04
+0:24
24M
24.00 mi14:16:073:20:038:209:02
9:02
-0:02
40K
24.85 mi14:23:383:27:348:217:31
8:47
-0:15
25.2M
25.20 mi14:27:023:30:588:223:24
9:52
+1:05
Finish
26.22 mi14:35:463:39:428:238:44
8:34
-1:18

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

7:56 /mi

Average Pace

8:23 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:26

57% of race

Time at Steady Pace

1:01:12

28% of race

Time at Slower Pace

33:04

15% of race

Average Pace: 8:23 /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 mi11:21:1025:068:0525:06
8:05
#17227
10K
6.21 mi11:46:0850:048:0324:58
8:02
#16963
15K
9.32 mi12:11:131:15:098:0425:05
8:04
#16802
20K
12.43 mi12:36:231:40:198:0425:10
8:06
#16476
Half
13.11 mi12:41:481:45:448:045:25
7:56
#16425
25K
15.53 mi13:01:302:05:268:0419:42
8:08
#16133
30K
18.64 mi13:27:592:31:558:0926:29
8:31
#15870
20M
20.00 mi13:39:582:43:548:1211:59
8:49
#15831
21M
21.00 mi13:49:152:53:118:159:17
9:17
#15732
35K
21.75 mi13:55:442:59:408:166:29
8:40
#15735
23M
23.00 mi14:07:053:11:018:1811:21
9:04
#15724
24M
24.00 mi14:16:073:20:038:209:02
9:02
#15805
40K
24.85 mi14:23:383:27:348:217:31
8:47
#15749
25.2M
25.20 mi14:27:023:30:588:223:24
9:52
#15750
Finish
26.22 mi14:35:463:39:428:238:44
8:34
#15794
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi172275874587416584(Top 58%)5487(Top 45%)5487(Top 319%)
10K6.21 mi3.10 mi16963+2645703+1715703+17116752(Top 59%)5566(Top 46%)5566(Top 324%)
15K9.32 mi3.11 mi16802+1615608+955608+9516584(Top 58%)5487(Top 45%)5487(Top 319%)
20K12.43 mi3.11 mi16476+3265417+1915417+19115657(Top 55%)5012(Top 41%)5012(Top 292%)
Half13.11 mi0.68 mi16425+515388+295388+2915506(Top 55%)4906(Top 40%)4906(Top 286%)
25K15.53 mi2.42 mi16133+2925237+1515237+15114817(Top 52%)4656(Top 38%)4656(Top 271%)
30K18.64 mi3.11 mi15870+2635150+875150+8714923(Top 53%)4864(Top 40%)4864(Top 283%)
20M20.00 mi1.36 mi15831+395169-195169-1915776(Top 56%)5462(Top 45%)5462(Top 318%)
21M21.00 mi1.00 mi15732+995155+145155+1415090(Top 53%)5223(Top 43%)5223(Top 304%)
35K21.75 mi0.75 mi15735-35179-245179-2416494(Top 58%)6053(Top 50%)6053(Top 352%)
23M23.00 mi1.25 mi15724+115206-275206-2716637(Top 59%)6238(Top 51%)6238(Top 363%)
24M24.00 mi1.00 mi15805-815271-655271-6517544(Top 62%)6780(Top 55%)6780(Top 395%)
40K24.85 mi0.85 mi15749+565258+135258+1315165(Top 53%)5609(Top 46%)5609(Top 326%)
25.2M25.20 mi0.35 mi15750-15272-145272-1416421(Top 58%)6282(Top 51%)6282(Top 366%)
Finish26.22 mi1.02 mi15794-445329-575329-5716684(Top 59%)6389(Top 52%)6389(Top 372%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

16584

Females

5487

F40-44

5487

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

16752

Females

5566

F40-44

5566

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

16584

Females

5487

F40-44

5487

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

15657

Females

5012

F40-44

5012

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

15506

Females

4906

F40-44

4906

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

14817

Females

4656

F40-44

4656

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

14923

Females

4864

F40-44

4864

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

15776

Females

5462

F40-44

5462

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

15090

Females

5223

F40-44

5223

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

16494

Females

6053

F40-44

6053

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

16637

Females

6238

F40-44

6238

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

17544

Females

6780

F40-44

6780

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15165

Females

5609

F40-44

5609

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16421

Females

6282

F40-44

6282

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2stories
+22ft-21ft

Overall

16684

Females

6389

F40-44

6389

Passing Analysis

Category:
Athletes Passed
2575
Passed By
1142
Net Change
+1433
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17227
5K → 10K451187+264#17227#16963
10K → 15K286125+161#16963#16802
15K → 20K39266+326#16802#16476
20K → Half6211+51#16476#16425
Half → 25K32533+292#16425#16133
25K → 30K35390+263#16133#15870
30K → 20M13495+39#15870#15831
20M → 21M16566+99#15831#15732
21M → 35K6366-3#15732#15735
35K → 23M112101+11#15735#15724
23M → 24M42123-81#15724#15805
24M → 40K10549+56#15805#15749
40K → 25.2M3637-1#15749#15750
25.2M → Finish4993-44#15750#15794
TOTALS25751142+1433
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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