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BOSTON MARATHON 2024

Sandra Frederick

Bib: 23158•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F60-64)
#0 / 549
Top 31%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:35
Rank: #21801
Start → 5K
9:31/mi
29:35 split
10K· 6.21 mi
58:32
Rank: #21328 (+473)
5K → 10K
9:19/mi
28:57 split
15K· 9.32 mi
1:27:46
Rank: #20968 (+360)
10K → 15K
9:25/mi
29:14 split
20K· 12.43 mi
1:58:24
Rank: #20768 (+200)
15K → 20K
9:52/mi
30:38 split
Half· 13.11 mi
2:04:36
Rank: #20666 (+102)
20K → Half
9:05/mi
6:12 split
25K· 15.53 mi
2:28:10
Rank: #20264 (+402)
Half → 25K
9:43/mi
23:34 split
30K· 18.64 mi
2:59:19
Rank: #19744 (+520)
25K → 30K
10:02/mi
31:09 split
20M
3:12:48
Rank: #19469 (+275)
30K → 20M
9:55/mi
13:29 split
21M
3:23:20
Rank: #19184 (+285)
20M → 21M
10:32/mi
10:32 split
35K· 21.75 mi
3:30:40
Rank: #19069 (+115)
21M → 35K
9:48/mi
7:20 split
23M
3:43:12
Rank: #18826 (+243)
35K → 23M
10:01/mi
12:32 split
24M
3:52:57
Rank: #18672 (+154)
23M → 24M
9:45/mi
9:45 split
40K· 24.85 mi
4:01:17
Rank: #18518 (+154)
24M → 40K
9:45/mi
8:20 split
25.2M
4:05:02
Rank: #18435 (+83)
40K → 25.2M
10:52/mi
3:45 split
Finish· 26.22 mi
4:14:19
Rank: #18275 (+160)
25.2M → Finish
9:07/mi
9:17 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:36
Pace9:30 /mi
2nd Half
Distance13.11 mi
Time2:09:43
Pace9:54 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:5429:359:3129:35
9:31
-
10K
6.21 mi11:59:5158:329:2528:57
9:19
-0:12
15K
9.32 mi12:29:051:27:469:2529:14
9:25
+0:06
20K
12.43 mi12:59:431:58:249:3230:38
9:52
+0:27
Half
13.11 mi13:05:552:04:369:306:12
9:05
-0:47
25K
15.53 mi13:29:292:28:109:3223:34
9:43
+0:38
30K
18.64 mi14:00:382:59:199:3731:09
10:02
+0:19
20M
20.00 mi14:14:073:12:489:3813:29
9:55
-0:07
21M
21.00 mi14:24:393:23:209:4110:32
10:32
+0:37
35K
21.75 mi14:31:593:30:409:417:20
9:48
-0:44
23M
23.00 mi14:44:313:43:129:4212:32
10:01
+0:13
24M
24.00 mi14:54:163:52:579:429:45
9:45
-0:16
40K
24.85 mi15:02:364:01:179:428:20
9:45
0:00
25.2M
25.20 mi15:06:214:05:029:433:45
10:52
+1:07
Finish
26.22 mi15:15:384:14:199:429:17
9:07
-1:45

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

9:05 /mi

Average Pace

9:42 /mi

Slowest Pace

10:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:21

77% of race

Time at Steady Pace

54:13

21% of race

Time at Slower Pace

3:45

1% of race

Average Pace: 9:42 /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 mi11:30:5429:359:3129:35
9:31
#21801
10K
6.21 mi11:59:5158:329:2528:57
9:19
#21328
15K
9.32 mi12:29:051:27:469:2529:14
9:25
#20968
20K
12.43 mi12:59:431:58:249:3230:38
9:52
#20768
Half
13.11 mi13:05:552:04:369:306:12
9:05
#20666
25K
15.53 mi13:29:292:28:109:3223:34
9:43
#20264
30K
18.64 mi14:00:382:59:199:3731:09
10:02
#19744
20M
20.00 mi14:14:073:12:489:3813:29
9:55
#19469
21M
21.00 mi14:24:393:23:209:4110:32
10:32
#19184
35K
21.75 mi14:31:593:30:409:417:20
9:48
#19069
23M
23.00 mi14:44:313:43:129:4212:32
10:01
#18826
24M
24.00 mi14:54:163:52:579:429:45
9:45
#18672
40K
24.85 mi15:02:364:01:179:428:20
9:45
#18518
25.2M
25.20 mi15:06:214:05:029:433:45
10:52
#18435
Finish
26.22 mi15:15:384:14:199:429:17
9:07
#18275
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi218018815881520388(Top 80%)7992(Top 73%)7992(Top 1456%)
10K6.21 mi3.10 mi21328+4738546+2698546+26920844(Top 82%)8280(Top 76%)8280(Top 1508%)
15K9.32 mi3.11 mi20968+3608349+1978349+19720388(Top 80%)7992(Top 73%)7992(Top 1456%)
20K12.43 mi3.11 mi20768+2008232+1178232+11720209(Top 79%)7928(Top 73%)7928(Top 1444%)
Half13.11 mi0.68 mi20666+1028187+458187+4518686(Top 73%)7161(Top 66%)7161(Top 1304%)
25K15.53 mi2.42 mi20264+4027977+2107977+21018298(Top 72%)6992(Top 64%)6992(Top 1274%)
30K18.64 mi3.11 mi19744+5207759+2187759+21817439(Top 68%)6755(Top 62%)6755(Top 1230%)
20M20.00 mi1.36 mi19469+2757653+1067653+10616223(Top 63%)6331(Top 58%)6331(Top 1153%)
21M21.00 mi1.00 mi19184+2857519+1347519+13414973(Top 59%)5809(Top 53%)5809(Top 1058%)
35K21.75 mi0.75 mi19069+1157475+447475+4416565(Top 65%)6647(Top 61%)6647(Top 1211%)
23M23.00 mi1.25 mi18826+2437366+1097366+10915528(Top 61%)6182(Top 57%)6182(Top 1126%)
24M24.00 mi1.00 mi18672+1547312+547312+5415474(Top 61%)6189(Top 57%)6189(Top 1127%)
40K24.85 mi0.85 mi18518+1547246+667246+6614088(Top 55%)5584(Top 51%)5584(Top 1017%)
25.2M25.20 mi0.35 mi18435+837210+367210+3614135(Top 55%)5644(Top 52%)5644(Top 1028%)
Finish26.22 mi1.02 mi18275+1607158+527158+5214779(Top 58%)5861(Top 54%)5861(Top 1068%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

20388

Females

7992

F60-64

7992

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

20844

Females

8280

F60-64

8280

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

20388

Females

7992

F60-64

7992

15K→20K

9.3 - 12.4 mi

Top 79%
×5stories
+106ft-86ft

Overall

20209

Females

7928

F60-64

7928

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

18686

Females

7161

F60-64

7161

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

18298

Females

6992

F60-64

6992

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

17439

Females

6755

F60-64

6755

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16223

Females

6331

F60-64

6331

20M→21M

20.0 - 21.0 mi

Top 59%
×8stories
+106ft-24ft

Overall

14973

Females

5809

F60-64

5809

21M→35K

21.0 - 21.8 mi

Top 65%
×7stories
+17ft-86ft

Overall

16565

Females

6647

F60-64

6647

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

15528

Females

6182

F60-64

6182

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

15474

Females

6189

F60-64

6189

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14088

Females

5584

F60-64

5584

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14135

Females

5644

F60-64

5644

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

14779

Females

5861

F60-64

5861

Passing Analysis

Category:
Athletes Passed
3795
Passed By
269
Net Change
+3526
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21801
5K → 10K54774+473#21801#21328
10K → 15K39434+360#21328#20968
15K → 20K28989+200#20968#20768
20K → Half1075+102#20768#20666
Half → 25K41412+402#20666#20264
25K → 30K5299+520#20264#19744
30K → 20M2761+275#19744#19469
20M → 21M2927+285#19469#19184
21M → 35K12510+115#19184#19069
35K → 23M2496+243#19069#18826
23M → 24M1595+154#18826#18672
24M → 40K1584+154#18672#18518
40K → 25.2M852+83#18518#18435
25.2M → Finish17111+160#18435#18275
TOTALS3795269+3526
📊

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