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BOSTON MARATHON 2023

Elizabeth Macdonald

Bib: 9776•F

NS

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 19%
Gender (Female)
#0 / 11423
Top 3%
Division (F18-39)
#0 / 4884
Top 7%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:55
Rank: #3971
Start → 5K
20:55 | 6:44/mi
10K· 6.21 mi
42:01
Rank: #4621 (-650)
5K → 10K
21:06 | 6:47/mi
15K· 9.32 mi
1:03:09
Rank: #4762 (-141)
10K → 15K
21:08 | 6:48/mi
20K· 12.43 mi
1:24:46
Rank: #5038 (-276)
15K → 20K
21:37 | 6:57/mi
Half· 13.11 mi
1:29:26
Rank: #5083 (-45)
20K → Half
4:40 | 6:50/mi
25K· 15.53 mi
1:46:16
Rank: #5104 (-21)
Half → 25K
16:50 | 6:57/mi
30K· 18.64 mi
2:08:30
Rank: #5115 (-11)
25K → 30K
22:14 | 7:09/mi
20M
2:18:19
Rank: #5119 (-4)
30K → 20M
9:49 | 7:13/mi
21M
2:26:00
Rank: #5109 (+10)
20M → 21M
7:41 | 7:41/mi
35K· 21.75 mi
2:31:14
Rank: #5091 (+18)
21M → 35K
5:14 | 7:00/mi
23M
2:40:21
Rank: #5059 (+32)
35K → 23M
9:07 | 7:17/mi
24M
2:47:29
Rank: #5033 (+26)
23M → 24M
7:08 | 7:08/mi
40K· 24.85 mi
2:53:50
Rank: #5025 (+8)
24M → 40K
6:21 | 7:26/mi
25.2M
2:56:24
Rank: #4991 (+34)
40K → 25.2M
2:34 | 7:26/mi
Finish· 26.22 mi
3:03:37
Rank: #4976 (+15)
25.2M → Finish
7:13 | 7:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:26
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:34:11
Pace7:11 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:1620:556:4420:55
6:44
-
10K
6.21 mi11:07:2242:016:4621:06
6:47
+0:03
15K
9.32 mi11:28:301:03:096:4721:08
6:48
+0:01
20K
12.43 mi11:50:071:24:466:4921:37
6:57
+0:09
Half
13.11 mi11:54:471:29:266:494:40
6:50
-0:07
25K
15.53 mi12:11:371:46:166:5016:50
6:57
+0:07
30K
18.64 mi12:33:512:08:306:5422:14
7:09
+0:12
20M
20.00 mi12:43:402:18:196:559:49
7:13
+0:04
21M
21.00 mi12:51:212:26:006:577:41
7:41
+0:28
35K
21.75 mi12:56:352:31:146:575:14
7:00
-0:41
23M
23.00 mi13:05:422:40:216:589:07
7:17
+0:17
24M
24.00 mi13:12:502:47:296:597:08
7:08
-0:09
40K
24.85 mi13:19:112:53:507:006:21
7:26
+0:18
25.2M
25.20 mi13:21:452:56:247:002:34
7:26
0:00
Finish
26.22 mi13:28:583:03:377:007:13
7:05
-0:21

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

6:44 /mi

Average Pace

7:00 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:01

91% of race

Time at Steady Pace

16:36

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:00 /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 mi10:46:1620:556:4420:55
6:44
#3971
10K
6.21 mi11:07:2242:016:4621:06
6:47
#4621
15K
9.32 mi11:28:301:03:096:4721:08
6:48
#4762
20K
12.43 mi11:50:071:24:466:4921:37
6:57
#5038
Half
13.11 mi11:54:471:29:266:494:40
6:50
#5083
25K
15.53 mi12:11:371:46:166:5016:50
6:57
#5104
30K
18.64 mi12:33:512:08:306:5422:14
7:09
#5115
20M
20.00 mi12:43:402:18:196:559:49
7:13
#5119
21M
21.00 mi12:51:212:26:006:577:41
7:41
#5109
35K
21.75 mi12:56:352:31:146:575:14
7:00
#5091
23M
23.00 mi13:05:422:40:216:589:07
7:17
#5059
24M
24.00 mi13:12:502:47:296:597:08
7:08
#5033
40K
24.85 mi13:19:112:53:507:006:21
7:26
#5025
25.2M
25.20 mi13:21:452:56:247:002:34
7:26
#4991
Finish
26.22 mi13:28:583:03:377:007:13
7:05
#4976
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi39712402405175(Top 19%)384(Top 3%)384(Top 8%)
10K6.21 mi3.10 mi4621-650302-62302-625242(Top 20%)387(Top 3%)387(Top 8%)
15K9.32 mi3.11 mi4762-141325-23325-235175(Top 19%)384(Top 3%)384(Top 8%)
20K12.43 mi3.11 mi5038-276353-28353-285721(Top 21%)469(Top 4%)469(Top 10%)
Half13.11 mi0.68 mi5083-45361-8361-85670(Top 21%)445(Top 4%)445(Top 9%)
25K15.53 mi2.42 mi5104-21364-3364-35262(Top 20%)407(Top 4%)407(Top 8%)
30K18.64 mi3.11 mi5115-11373-9373-95258(Top 20%)452(Top 4%)452(Top 9%)
20M20.00 mi1.36 mi5119-4375-2375-25254(Top 20%)508(Top 4%)508(Top 10%)
21M21.00 mi1.00 mi5109+10386-11386-115544(Top 21%)672(Top 6%)672(Top 14%)
35K21.75 mi0.75 mi5091+18388-2388-25348(Top 20%)574(Top 5%)574(Top 12%)
23M23.00 mi1.25 mi5059+32397-9397-95232(Top 20%)591(Top 5%)591(Top 12%)
24M24.00 mi1.00 mi5033+26401-4401-45394(Top 20%)674(Top 6%)674(Top 14%)
40K24.85 mi0.85 mi5025+8397+4397+46303(Top 24%)1097(Top 10%)1097(Top 22%)
25.2M25.20 mi0.35 mi4991+34392+5392+53512(Top 13%)369(Top 3%)369(Top 8%)
Finish26.22 mi1.02 mi4976+15399-7399-75736(Top 22%)972(Top 9%)972(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5175

Females

384

F18-39

384

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5242

Females

387

F18-39

387

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5175

Females

384

F18-39

384

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5721

Females

469

F18-39

469

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5670

Females

445

F18-39

445

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5262

Females

407

F18-39

407

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5258

Females

452

F18-39

452

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5254

Females

508

F18-39

508

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

5544

Females

672

F18-39

672

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5348

Females

574

F18-39

574

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5232

Females

591

F18-39

591

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5394

Females

674

F18-39

674

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6303

Females

1097

F18-39

1097

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3512

Females

369

F18-39

369

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

5736

Females

972

F18-39

972

Passing Analysis

Category:
Athletes Passed
839
Passed By
1844
Net Change
-1005
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3971
5K → 10K46696-650#3971#4621
10K → 15K72213-141#4621#4762
15K → 20K38314-276#4762#5038
20K → Half651-45#5038#5083
Half → 25K102123-21#5083#5104
25K → 30K136147-11#5104#5115
30K → 20M6973-4#5115#5119
20M → 21M6454+10#5119#5109
21M → 35K4224+18#5109#5091
35K → 23M7745+32#5091#5059
23M → 24M6135+26#5059#5033
24M → 40K4234+8#5033#5025
40K → 25.2M384+34#5025#4991
25.2M → Finish4631+15#4991#4976
TOTALS8391844-1005
📊

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