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BOSTON MARATHON 2023

Martha Reynolds

Bib: 12872•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 32%
Gender (Female)
#0 / 11423
Top 13%
Division (F18-39)
#0 / 4884
Top 24%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:44
Rank: #8227
Start → 5K
22:44 | 7:19/mi
10K· 6.21 mi
45:03
Rank: #8119 (+108)
5K → 10K
22:19 | 7:11/mi
15K· 9.32 mi
1:07:31
Rank: #8076 (+43)
10K → 15K
22:28 | 7:14/mi
20K· 12.43 mi
1:30:41
Rank: #8230 (-154)
15K → 20K
23:10 | 7:27/mi
Half· 13.11 mi
1:35:40
Rank: #8238 (-8)
20K → Half
4:59 | 7:18/mi
25K· 15.53 mi
1:53:54
Rank: #8331 (-93)
Half → 25K
18:14 | 7:31/mi
30K· 18.64 mi
2:18:10
Rank: #8452 (-121)
25K → 30K
24:16 | 7:49/mi
20M
2:28:55
Rank: #8531 (-79)
30K → 20M
10:45 | 7:55/mi
21M
2:37:11
Rank: #8539 (-8)
20M → 21M
8:16 | 8:16/mi
35K· 21.75 mi
2:42:51
Rank: #8538 (+1)
21M → 35K
5:40 | 7:34/mi
23M
2:52:56
Rank: #8613 (-75)
35K → 23M
10:05 | 8:03/mi
24M
3:00:47
Rank: #8665 (-52)
23M → 24M
7:51 | 7:51/mi
40K· 24.85 mi
3:07:31
Rank: #8658 (+7)
24M → 40K
6:44 | 7:53/mi
25.2M
3:10:20
Rank: #8629 (+29)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
3:18:03
Rank: #8627 (+2)
25.2M → Finish
7:43 | 7:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:40
Pace7:18 /mi
2nd Half
Distance13.11 mi
Time1:42:23
Pace7:49 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5322:447:1922:44
7:19
-
10K
6.21 mi11:12:1245:037:1522:19
7:11
-0:08
15K
9.32 mi11:34:401:07:317:1522:28
7:14
+0:03
20K
12.43 mi11:57:501:30:417:1823:10
7:27
+0:13
Half
13.11 mi12:02:491:35:407:184:59
7:18
-0:09
25K
15.53 mi12:21:031:53:547:2018:14
7:31
+0:13
30K
18.64 mi12:45:192:18:107:2524:16
7:49
+0:18
20M
20.00 mi12:56:042:28:557:2710:45
7:55
+0:06
21M
21.00 mi13:04:202:37:117:298:16
8:16
+0:21
35K
21.75 mi13:10:002:42:517:295:40
7:34
-0:42
23M
23.00 mi13:20:052:52:567:3110:05
8:03
+0:29
24M
24.00 mi13:27:563:00:477:327:51
7:51
-0:12
40K
24.85 mi13:34:403:07:317:336:44
7:53
+0:02
25.2M
25.20 mi13:37:293:10:207:332:49
8:10
+0:17
Finish
26.22 mi13:45:123:18:037:347:43
7:34
-0:36

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

7:11 /mi

Average Pace

7:34 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:08

84% of race

Time at Steady Pace

31:55

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:33 /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 mi10:49:5322:447:1922:44
7:19
#8227
10K
6.21 mi11:12:1245:037:1522:19
7:11
#8119
15K
9.32 mi11:34:401:07:317:1522:28
7:14
#8076
20K
12.43 mi11:57:501:30:417:1823:10
7:27
#8230
Half
13.11 mi12:02:491:35:407:184:59
7:18
#8238
25K
15.53 mi12:21:031:53:547:2018:14
7:31
#8331
30K
18.64 mi12:45:192:18:107:2524:16
7:49
#8452
20M
20.00 mi12:56:042:28:557:2710:45
7:55
#8531
21M
21.00 mi13:04:202:37:117:298:16
8:16
#8539
35K
21.75 mi13:10:002:42:517:295:40
7:34
#8538
23M
23.00 mi13:20:052:52:567:3110:05
8:03
#8613
24M
24.00 mi13:27:563:00:477:327:51
7:51
#8665
40K
24.85 mi13:34:403:07:317:336:44
7:53
#8658
25.2M
25.20 mi13:37:293:10:207:332:49
8:10
#8629
Finish
26.22 mi13:45:123:18:037:347:43
7:34
#8627
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8227109810988032(Top 30%)1082(Top 9%)1082(Top 22%)
10K6.21 mi3.10 mi8119+1081076+221076+227990(Top 30%)1049(Top 9%)1049(Top 21%)
15K9.32 mi3.11 mi8076+431066+101066+108032(Top 30%)1082(Top 9%)1082(Top 22%)
20K12.43 mi3.11 mi8230-1541129-631129-638985(Top 34%)1478(Top 13%)1478(Top 30%)
Half13.11 mi0.68 mi8238-81139-101139-108710(Top 33%)1370(Top 12%)1370(Top 28%)
25K15.53 mi2.42 mi8331-931197-581197-588932(Top 34%)1532(Top 13%)1532(Top 31%)
30K18.64 mi3.11 mi8452-1211285-881285-889454(Top 36%)1906(Top 17%)1906(Top 39%)
20M20.00 mi1.36 mi8531-791328-431328-439639(Top 36%)2074(Top 18%)2074(Top 42%)
21M21.00 mi1.00 mi8539-81353-251353-259039(Top 34%)1936(Top 17%)1936(Top 40%)
35K21.75 mi0.75 mi8538+11364-111364-119113(Top 34%)1963(Top 17%)1963(Top 40%)
23M23.00 mi1.25 mi8613-751413-491413-4910133(Top 38%)2560(Top 22%)2560(Top 52%)
24M24.00 mi1.00 mi8665-521457-441457-4410165(Top 38%)2658(Top 23%)2658(Top 54%)
40K24.85 mi0.85 mi8658+71471-141471-149189(Top 35%)2251(Top 20%)2251(Top 46%)
25.2M25.20 mi0.35 mi8629+291468+31468+37553(Top 28%)1623(Top 14%)1623(Top 33%)
Finish26.22 mi1.02 mi8627+21492-241492-249111(Top 34%)2281(Top 20%)2281(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

8032

Females

1082

F18-39

1082

5K→10K

3.1 - 6.2 mi

Top 30%
×5stories
+79ft-138ft

Overall

7990

Females

1049

F18-39

1049

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

8032

Females

1082

F18-39

1082

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

8985

Females

1478

F18-39

1478

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

8710

Females

1370

F18-39

1370

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

8932

Females

1532

F18-39

1532

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

9454

Females

1906

F18-39

1906

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

9639

Females

2074

F18-39

2074

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

9039

Females

1936

F18-39

1936

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

9113

Females

1963

F18-39

1963

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10133

Females

2560

F18-39

2560

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10165

Females

2658

F18-39

2658

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9189

Females

2251

F18-39

2251

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7553

Females

1623

F18-39

1623

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9111

Females

2281

F18-39

2281

Passing Analysis

Category:
Athletes Passed
1173
Passed By
1573
Net Change
-400
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8227
5K → 10K293185+108#8227#8119
10K → 15K151108+43#8119#8076
15K → 20K78232-154#8076#8230
20K → Half2028-8#8230#8238
Half → 25K83176-93#8238#8331
25K → 30K106227-121#8331#8452
30K → 20M56135-79#8452#8531
20M → 21M7179-8#8531#8539
21M → 35K4039+1#8539#8538
35K → 23M61136-75#8538#8613
23M → 24M51103-52#8613#8665
24M → 40K6154+7#8665#8658
40K → 25.2M3910+29#8658#8629
25.2M → Finish6361+2#8629#8627
TOTALS11731573-400
📊

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