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BOSTON MARATHON 2023

Mary Flinders

Bib: 20676•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:33
Rank: #22128
Start → 5K
9:31/mi
29:33 split
10K· 6.21 mi
58:48
Rank: #22241 (-113)
5K → 10K
9:25/mi
29:15 split
15K· 9.32 mi
1:28:35
Rank: #22333 (-92)
10K → 15K
9:35/mi
29:47 split
20K· 12.43 mi
1:58:53
Rank: #22298 (+35)
15K → 20K
9:45/mi
30:18 split
Half· 13.11 mi
2:05:25
Rank: #22302 (-4)
20K → Half
9:35/mi
6:32 split
25K· 15.53 mi
2:28:57
Rank: #22163 (+139)
Half → 25K
9:42/mi
23:32 split
30K· 18.64 mi
3:01:00
Rank: #22098 (+65)
25K → 30K
10:19/mi
32:03 split
20M
3:14:30
Rank: #21948 (+150)
30K → 20M
9:56/mi
13:30 split
21M
3:25:03
Rank: #21835 (+113)
20M → 21M
10:33/mi
10:33 split
35K· 21.75 mi
3:32:16
Rank: #21790 (+45)
21M → 35K
9:39/mi
7:13 split
23M
3:45:05
Rank: #21713 (+77)
35K → 23M
10:14/mi
12:49 split
24M
3:54:34
Rank: #21602 (+111)
23M → 24M
9:29/mi
9:29 split
40K· 24.85 mi
4:02:47
Rank: #21501 (+101)
24M → 40K
9:37/mi
8:13 split
25.2M
4:06:27
Rank: #21474 (+27)
40K → 25.2M
10:38/mi
3:40 split
Finish· 26.22 mi
4:15:51
Rank: #21362 (+112)
25.2M → Finish
9:13/mi
9:24 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:25
Pace9:34 /mi
2nd Half
Distance13.11 mi
Time2:10:26
Pace9:57 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:3529:339:3129:33
9:31
-
10K
6.21 mi12:14:5058:489:2829:15
9:25
-0:06
15K
9.32 mi12:44:371:28:359:3029:47
9:35
+0:10
20K
12.43 mi13:14:551:58:539:3430:18
9:45
+0:10
Half
13.11 mi13:21:272:05:259:346:32
9:35
-0:10
25K
15.53 mi13:44:592:28:579:3523:32
9:42
+0:07
30K
18.64 mi14:17:023:01:009:4332:03
10:19
+0:37
20M
20.00 mi14:30:323:14:309:4313:30
9:56
-0:23
21M
21.00 mi14:41:053:25:039:4610:33
10:33
+0:37
35K
21.75 mi14:48:183:32:169:467:13
9:39
-0:54
23M
23.00 mi15:01:073:45:059:4712:49
10:14
+0:35
24M
24.00 mi15:10:363:54:349:469:29
9:29
-0:45
40K
24.85 mi15:18:494:02:479:468:13
9:37
+0:08
25.2M
25.20 mi15:22:294:06:279:473:40
10:38
+1:01
Finish
26.22 mi15:31:534:15:519:469:24
9:13
-1:25

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

9:13 /mi

Average Pace

9:46 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:46

77% of race

Time at Steady Pace

59:05

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:45 /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 mi11:45:3529:339:3129:33
9:31
#22128
10K
6.21 mi12:14:5058:489:2829:15
9:25
#22241
15K
9.32 mi12:44:371:28:359:3029:47
9:35
#22333
20K
12.43 mi13:14:551:58:539:3430:18
9:45
#22298
Half
13.11 mi13:21:272:05:259:346:32
9:35
#22302
25K
15.53 mi13:44:592:28:579:3523:32
9:42
#22163
30K
18.64 mi14:17:023:01:009:4332:03
10:19
#22098
20M
20.00 mi14:30:323:14:309:4313:30
9:56
#21948
21M
21.00 mi14:41:053:25:039:4610:33
10:33
#21835
35K
21.75 mi14:48:183:32:169:467:13
9:39
#21790
23M
23.00 mi15:01:073:45:059:4712:49
10:14
#21713
24M
24.00 mi15:10:363:54:349:469:29
9:29
#21602
40K
24.85 mi15:18:494:02:479:468:13
9:37
#21501
25.2M
25.20 mi15:22:294:06:279:473:40
10:38
#21474
Finish
26.22 mi15:31:534:15:519:469:24
9:13
#21362
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi221288943894322495(Top 84%)9068(Top 79%)9068(Top 499%)
10K6.21 mi3.10 mi22241-1138969-268969-2622266(Top 84%)8963(Top 78%)8963(Top 493%)
15K9.32 mi3.11 mi22333-929007-389007-3822495(Top 84%)9068(Top 79%)9068(Top 499%)
20K12.43 mi3.11 mi22298+358983+248983+2422298(Top 84%)8963(Top 78%)8963(Top 493%)
Half13.11 mi0.68 mi22302-48983898322354(Top 84%)8989(Top 79%)8989(Top 495%)
25K15.53 mi2.42 mi22163+1398920+638920+6321490(Top 81%)8555(Top 75%)8555(Top 471%)
30K18.64 mi3.11 mi22098+658893+278893+2721816(Top 82%)8801(Top 77%)8801(Top 484%)
20M20.00 mi1.36 mi21948+1508817+768817+7620317(Top 76%)8041(Top 70%)8041(Top 443%)
21M21.00 mi1.00 mi21835+1138760+578760+5719772(Top 74%)7811(Top 68%)7811(Top 430%)
35K21.75 mi0.75 mi21790+458746+148746+1420345(Top 76%)8145(Top 71%)8145(Top 448%)
23M23.00 mi1.25 mi21713+778723+238723+2320695(Top 78%)8349(Top 73%)8349(Top 459%)
24M24.00 mi1.00 mi21602+1118672+518672+5119181(Top 72%)7556(Top 66%)7556(Top 416%)
40K24.85 mi0.85 mi21501+1018624+488624+4818767(Top 70%)7376(Top 65%)7376(Top 406%)
25.2M25.20 mi0.35 mi21474+278619+58619+519590(Top 74%)7854(Top 69%)7854(Top 432%)
Finish26.22 mi1.02 mi21362+1128562+578562+5719076(Top 72%)7491(Top 66%)7491(Top 412%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21stories
+97ft-345ft

Overall

22495

Females

9068

F45-49

9068

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

22266

Females

8963

F45-49

8963

10K→15K

6.2 - 9.3 mi

Top 84%
×3stories
+67ft-78ft

Overall

22495

Females

9068

F45-49

9068

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

22298

Females

8963

F45-49

8963

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

22354

Females

8989

F45-49

8989

Half→25K

13.1 - 15.5 mi

Top 81%
×4stories
+66ft-88ft

Overall

21490

Females

8555

F45-49

8555

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

21816

Females

8801

F45-49

8801

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

20317

Females

8041

F45-49

8041

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

19772

Females

7811

F45-49

7811

21M→35K

21.0 - 21.8 mi

Top 76%
×7stories
+17ft-86ft

Overall

20345

Females

8145

F45-49

8145

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

20695

Females

8349

F45-49

8349

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

19181

Females

7556

F45-49

7556

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18767

Females

7376

F45-49

7376

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19590

Females

7854

F45-49

7854

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

19076

Females

7491

F45-49

7491

Passing Analysis

Category:
Athletes Passed
1636
Passed By
870
Net Change
+766
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22128
5K → 10K191304-113#22128#22241
10K → 15K128220-92#22241#22333
15K → 20K150115+35#22333#22298
20K → Half1923-4#22298#22302
Half → 25K18243+139#22302#22163
25K → 30K16095+65#22163#22098
30K → 20M1566+150#22098#21948
20M → 21M12310+113#21948#21835
21M → 35K538+45#21835#21790
35K → 23M10124+77#21790#21713
23M → 24M1154+111#21713#21602
24M → 40K1065+101#21602#21501
40K → 25.2M325+27#21501#21474
25.2M → Finish1208+112#21474#21362
TOTALS1636870+766
📊

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