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BOSTON MARATHON 2024

Sandra Alexander

Bib: 28832•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Top 48%
Division (F50-54)
#0 / 1187
Top 44%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:08
Rank: #21351
Start → 5K
29:08 | 9:23/mi
10K· 6.21 mi
56:58
Rank: #20536 (+815)
5K → 10K
27:50 | 8:58/mi
15K· 9.32 mi
1:24:48
Rank: #19944 (+592)
10K → 15K
27:50 | 8:58/mi
20K· 12.43 mi
1:53:04
Rank: #19367 (+577)
15K → 20K
28:16 | 9:06/mi
Half· 13.11 mi
1:59:13
Rank: #19312 (+55)
20K → Half
6:09 | 9:01/mi
25K· 15.53 mi
2:21:43
Rank: #18825 (+487)
Half → 25K
22:30 | 9:17/mi
30K· 18.64 mi
2:51:49
Rank: #18333 (+492)
25K → 30K
30:06 | 9:41/mi
20M
3:04:46
Rank: #18060 (+273)
30K → 20M
12:57 | 9:32/mi
21M
3:15:01
Rank: #17798 (+262)
20M → 21M
10:15 | 10:15/mi
35K· 21.75 mi
3:21:10
Rank: #17524 (+274)
21M → 35K
6:09 | 8:13/mi
23M
3:32:30
Rank: #17172 (+352)
35K → 23M
11:20 | 9:03/mi
24M
3:40:55
Rank: #16854 (+318)
23M → 24M
8:25 | 8:25/mi
40K· 24.85 mi
3:48:11
Rank: #16544 (+310)
24M → 40K
7:16 | 8:30/mi
25.2M
3:51:27
Rank: #16403 (+141)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
4:00:01
Rank: #16235 (+168)
25.2M → Finish
8:34 | 8:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:13
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:00:48
Pace9:13 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:1729:089:2329:08
9:23
-
10K
6.21 mi12:19:0756:589:1027:50
8:58
-0:25
15K
9.32 mi12:46:571:24:489:0627:50
8:58
0:00
20K
12.43 mi13:15:131:53:049:0628:16
9:06
+0:08
Half
13.11 mi13:21:221:59:139:066:09
9:01
-0:05
25K
15.53 mi13:43:522:21:439:0722:30
9:17
+0:16
30K
18.64 mi14:13:582:51:499:1330:06
9:41
+0:24
20M
20.00 mi14:26:553:04:469:1412:57
9:32
-0:09
21M
21.00 mi14:37:103:15:019:1710:15
10:15
+0:43
35K
21.75 mi14:43:193:21:109:156:09
8:13
-2:02
23M
23.00 mi14:54:393:32:309:1411:20
9:03
+0:50
24M
24.00 mi15:03:043:40:559:128:25
8:25
-0:38
40K
24.85 mi15:10:203:48:119:117:16
8:30
+0:05
25.2M
25.20 mi15:13:363:51:279:113:16
9:28
+0:58
Finish
26.22 mi15:22:104:00:019:108:34
8:24
-1:04

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

8:13 /mi

Average Pace

9:10 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

30:24

13% of race

Time at Steady Pace

2:03:55

52% of race

Time at Slower Pace

1:25:42

36% of race

Average Pace: 9:09 /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 mi11:51:1729:089:2329:08
9:23
#21351
10K
6.21 mi12:19:0756:589:1027:50
8:58
#20536
15K
9.32 mi12:46:571:24:489:0627:50
8:58
#19944
20K
12.43 mi13:15:131:53:049:0628:16
9:06
#19367
Half
13.11 mi13:21:221:59:139:066:09
9:01
#19312
25K
15.53 mi13:43:522:21:439:0722:30
9:17
#18825
30K
18.64 mi14:13:582:51:499:1330:06
9:41
#18333
20M
20.00 mi14:26:553:04:469:1412:57
9:32
#18060
21M
21.00 mi14:37:103:15:019:1710:15
10:15
#17798
35K
21.75 mi14:43:193:21:109:156:09
8:13
#17524
23M
23.00 mi14:54:393:32:309:1411:20
9:03
#17172
24M
24.00 mi15:03:043:40:559:128:25
8:25
#16854
40K
24.85 mi15:10:203:48:119:117:16
8:30
#16544
25.2M
25.20 mi15:13:363:51:279:113:16
9:28
#16403
Finish
26.22 mi15:22:104:00:019:108:34
8:24
#16235
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi213518593859318712(Top 73%)7080(Top 65%)7080(Top 596%)
10K6.21 mi3.10 mi20536+8158135+4588135+45819582(Top 77%)7606(Top 70%)7606(Top 641%)
15K9.32 mi3.11 mi19944+5927807+3287807+32818712(Top 73%)7080(Top 65%)7080(Top 596%)
20K12.43 mi3.11 mi19367+5777500+3077500+30717752(Top 69%)6566(Top 60%)6566(Top 553%)
Half13.11 mi0.68 mi19312+557470+307470+3018344(Top 72%)6961(Top 64%)6961(Top 586%)
25K15.53 mi2.42 mi18825+4877213+2577213+25716736(Top 66%)6120(Top 56%)6120(Top 516%)
30K18.64 mi3.11 mi18333+4927016+1977016+19716202(Top 63%)6075(Top 56%)6075(Top 512%)
20M20.00 mi1.36 mi18060+2736897+1196897+11914672(Top 57%)5489(Top 50%)5489(Top 462%)
21M21.00 mi1.00 mi17798+2626786+1116786+11113951(Top 55%)5292(Top 48%)5292(Top 446%)
35K21.75 mi0.75 mi17524+2746637+1496637+1499149(Top 36%)2809(Top 26%)2809(Top 237%)
23M23.00 mi1.25 mi17172+3526469+1686469+16811473(Top 45%)4151(Top 38%)4151(Top 350%)
24M24.00 mi1.00 mi16854+3186321+1486321+1488993(Top 35%)2956(Top 27%)2956(Top 249%)
40K24.85 mi0.85 mi16544+3106171+1506171+1508393(Top 33%)2775(Top 25%)2775(Top 234%)
25.2M25.20 mi0.35 mi16403+1416109+626109+628721(Top 34%)3045(Top 28%)3045(Top 257%)
Finish26.22 mi1.02 mi16235+1686043+666043+6611040(Top 43%)4018(Top 37%)4018(Top 339%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

18712

Females

7080

F50-54

7080

5K→10K

3.1 - 6.2 mi

Top 77%
×5stories
+79ft-138ft

Overall

19582

Females

7606

F50-54

7606

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

18712

Females

7080

F50-54

7080

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

17752

Females

6566

F50-54

6566

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

18344

Females

6961

F50-54

6961

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

16736

Females

6120

F50-54

6120

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

16202

Females

6075

F50-54

6075

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

14672

Females

5489

F50-54

5489

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

13951

Females

5292

F50-54

5292

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

9149

Females

2809

F50-54

2809

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

11473

Females

4151

F50-54

4151

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

8993

Females

2956

F50-54

2956

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8393

Females

2775

F50-54

2775

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

8721

Females

3045

F50-54

3045

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

11040

Females

4018

F50-54

4018

Passing Analysis

Category:
Athletes Passed
5268
Passed By
152
Net Change
+5116
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21351
5K → 10K84126+815#21351#20536
10K → 15K61018+592#20536#19944
15K → 20K59518+577#19944#19367
20K → Half6914+55#19367#19312
Half → 25K50013+487#19312#18825
25K → 30K53745+492#18825#18333
30K → 20M2774+273#18333#18060
20M → 21M2697+262#18060#17798
21M → 35K2740+274#17798#17524
35K → 23M3531+352#17524#17172
23M → 24M3191+318#17172#16854
24M → 40K3122+310#16854#16544
40K → 25.2M1410+141#16544#16403
25.2M → Finish1713+168#16403#16235
TOTALS5268152+5116
📊

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