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BOSTON MARATHON 2023

Bridget Mcdow

Bib: 20637•F

TX

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
28:20
Rank: #20943
Start → 5K
28:20 | 9:07/mi
10K· 6.21 mi
57:14
Rank: #21443 (-500)
5K → 10K
28:54 | 9:18/mi
15K· 9.32 mi
1:27:05
Rank: #21823 (-380)
10K → 15K
29:51 | 9:36/mi
20K· 12.43 mi
1:59:40
Rank: #22490 (-667)
15K → 20K
32:35 | 10:29/mi
Half· 13.11 mi
2:06:58
Rank: #22646 (-156)
20K → Half
7:18 | 10:42/mi
25K· 15.53 mi
2:32:10
Rank: #22703 (-57)
Half → 25K
25:12 | 10:24/mi
30K· 18.64 mi
3:04:58
Rank: #22618 (+85)
25K → 30K
32:48 | 10:33/mi
20M
3:19:51
Rank: #22619 (-1)
30K → 20M
14:53 | 10:57/mi
21M
3:33:04
Rank: #22753 (-134)
20M → 21M
13:13 | 13:13/mi
35K· 21.75 mi
3:40:47
Rank: #22730 (+23)
21M → 35K
7:43 | 10:19/mi
23M
3:54:27
Rank: #22693 (+37)
35K → 23M
13:40 | 10:55/mi
24M
4:05:24
Rank: #22693
23M → 24M
10:57 | 10:57/mi
40K· 24.85 mi
4:14:25
Rank: #22654 (+39)
24M → 40K
9:01 | 10:33/mi
25.2M
4:18:31
Rank: #22653 (+1)
40K → 25.2M
4:06 | 11:53/mi
Finish· 26.22 mi
4:28:40
Rank: #22618 (+35)
25.2M → Finish
10:09 | 9:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:58
Pace9:41 /mi
2nd Half
Distance13.11 mi
Time2:21:42
Pace10:49 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5928:209:0728:20
9:07
-
10K
6.21 mi11:49:5357:149:1328:54
9:18
+0:11
15K
9.32 mi12:19:441:27:059:2129:51
9:36
+0:18
20K
12.43 mi12:52:191:59:409:3832:35
10:29
+0:53
Half
13.11 mi12:59:372:06:589:417:18
10:42
+0:13
25K
15.53 mi13:24:492:32:109:4825:12
10:24
-0:18
30K
18.64 mi13:57:373:04:589:5532:48
10:33
+0:09
20M
20.00 mi14:12:303:19:5110:0014:53
10:57
+0:24
21M
21.00 mi14:25:433:33:0410:0913:13
13:13
+2:16
35K
21.75 mi14:33:263:40:4710:097:43
10:19
-2:54
23M
23.00 mi14:47:063:54:2710:1213:40
10:55
+0:36
24M
24.00 mi14:58:034:05:2410:1410:57
10:57
+0:02
40K
24.85 mi15:07:044:14:2510:149:01
10:33
-0:24
25.2M
25.20 mi15:11:104:18:3110:164:06
11:53
+1:20
Finish
26.22 mi15:21:194:28:4010:1510:09
9:58
-1:55

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

9:07 /mi

Average Pace

10:15 /mi

Slowest Pace

13:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:14

36% of race

Time at Steady Pace

2:34:07

57% of race

Time at Slower Pace

17:19

6% of race

Average Pace: 10:15 /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 mi11:20:5928:209:0728:20
9:07
#20943
10K
6.21 mi11:49:5357:149:1328:54
9:18
#21443
15K
9.32 mi12:19:441:27:059:2129:51
9:36
#21823
20K
12.43 mi12:52:191:59:409:3832:35
10:29
#22490
Half
13.11 mi12:59:372:06:589:417:18
10:42
#22646
25K
15.53 mi13:24:492:32:109:4825:12
10:24
#22703
30K
18.64 mi13:57:373:04:589:5532:48
10:33
#22618
20M
20.00 mi14:12:303:19:5110:0014:53
10:57
#22619
21M
21.00 mi14:25:433:33:0410:0913:13
13:13
#22753
35K
21.75 mi14:33:263:40:4710:097:43
10:19
#22730
23M
23.00 mi14:47:063:54:2710:1213:40
10:55
#22693
24M
24.00 mi14:58:034:05:2410:1410:57
10:57
#22693
40K
24.85 mi15:07:044:14:2510:149:01
10:33
#22654
25.2M
25.20 mi15:11:104:18:3110:164:06
11:53
#22653
Finish
26.22 mi15:21:194:28:4010:1510:09
9:58
#22618
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi209438341834122546(Top 85%)9096(Top 80%)9096(Top 501%)
10K6.21 mi3.10 mi21443-5008555-2148555-21421950(Top 82%)8795(Top 77%)8795(Top 484%)
15K9.32 mi3.11 mi21823-3808741-1868741-18622546(Top 85%)9096(Top 80%)9096(Top 501%)
20K12.43 mi3.11 mi22490-6679080-3399080-33923810(Top 89%)9803(Top 86%)9803(Top 540%)
Half13.11 mi0.68 mi22646-1569162-829162-8224526(Top 92%)10223(Top 89%)10223(Top 563%)
25K15.53 mi2.42 mi22703-579210-489210-4823001(Top 86%)9391(Top 82%)9391(Top 517%)
30K18.64 mi3.11 mi22618+859195+159195+1522333(Top 84%)9094(Top 80%)9094(Top 500%)
20M20.00 mi1.36 mi22619-19204-99204-922627(Top 85%)9316(Top 82%)9316(Top 513%)
21M21.00 mi1.00 mi22753-1349278-749278-7424314(Top 91%)10251(Top 90%)10251(Top 564%)
35K21.75 mi0.75 mi22730+239277+19277+122049(Top 83%)9080(Top 79%)9080(Top 500%)
23M23.00 mi1.25 mi22693+379260+179260+1722189(Top 83%)9158(Top 80%)9158(Top 504%)
24M24.00 mi1.00 mi226939269-99269-922959(Top 86%)9611(Top 84%)9611(Top 529%)
40K24.85 mi0.85 mi22654+399258+119258+1121332(Top 80%)8797(Top 77%)8797(Top 484%)
25.2M25.20 mi0.35 mi22653+19261-39261-322318(Top 84%)9296(Top 81%)9296(Top 512%)
Finish26.22 mi1.02 mi22618+359249+129249+1221669(Top 81%)8947(Top 78%)8947(Top 492%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

22546

Females

9096

F45-49

9096

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

21950

Females

8795

F45-49

8795

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

22546

Females

9096

F45-49

9096

15K→20K

9.3 - 12.4 mi

Top 89%
×5stories
+106ft-86ft

Overall

23810

Females

9803

F45-49

9803

20K→Half

12.4 - 13.1 mi

Top 92%
×2stories
+19ft-37ft

Overall

24526

Females

10223

F45-49

10223

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

23001

Females

9391

F45-49

9391

25K→30K

15.5 - 18.6 mi

Top 84%
×9stories
+181ft-148ft

Overall

22333

Females

9094

F45-49

9094

30K→20M

18.6 - 20.0 mi

Top 85%
×5stories
+64ft-50ft

Overall

22627

Females

9316

F45-49

9316

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

24314

Females

10251

F45-49

10251

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

22049

Females

9080

F45-49

9080

35K→23M

21.8 - 23.0 mi

Top 83%
×5stories
+23ft-63ft

Overall

22189

Females

9158

F45-49

9158

23M→24M

23.0 - 24.0 mi

Top 86%
×6stories
+12ft-82ft

Overall

22959

Females

9611

F45-49

9611

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21332

Females

8797

F45-49

8797

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22318

Females

9296

F45-49

9296

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

21669

Females

8947

F45-49

8947

Passing Analysis

Category:
Athletes Passed
758
Passed By
2433
Net Change
-1675
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20943
5K → 10K103603-500#20943#21443
10K → 15K57437-380#21443#21823
15K → 20K18685-667#21823#22490
20K → Half4160-156#22490#22646
Half → 25K81138-57#22646#22703
25K → 30K15974+85#22703#22618
30K → 20M5556-1#22618#22619
20M → 21M16150-134#22619#22753
21M → 35K4219+23#22753#22730
35K → 23M6225+37#22730#22693
23M → 24M38380#22693#22693
24M → 40K5415+39#22693#22654
40K → 25.2M1514+1#22654#22653
25.2M → Finish5419+35#22653#22618
TOTALS7582433-1675
📊

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