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BOSTON MARATHON 2023

Jennifer Mcandrew

Bib: 18922•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 47%
Gender (Female)
#0 / 11423
Top 30%
Masters (Masters Women)
#0 / 6539
Top 17%
Division (F40-44)
#0 / 1878
Top 32%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:51
Rank: #14010
Start → 5K
24:51 | 8:00/mi
10K· 6.21 mi
49:30
Rank: #14131 (-121)
5K → 10K
24:39 | 7:56/mi
15K· 9.32 mi
1:14:07
Rank: #13985 (+146)
10K → 15K
24:37 | 7:55/mi
20K· 12.43 mi
1:39:01
Rank: #13845 (+140)
15K → 20K
24:54 | 8:01/mi
Half· 13.11 mi
1:44:28
Rank: #13858 (-13)
20K → Half
5:27 | 7:59/mi
25K· 15.53 mi
2:03:45
Rank: #13612 (+246)
Half → 25K
19:17 | 7:57/mi
30K· 18.64 mi
2:29:01
Rank: #13252 (+360)
25K → 30K
25:16 | 8:08/mi
20M
2:40:06
Rank: #13092 (+160)
30K → 20M
11:05 | 8:09/mi
21M
2:48:49
Rank: #12973 (+119)
20M → 21M
8:43 | 8:43/mi
35K· 21.75 mi
2:54:39
Rank: #12876 (+97)
21M → 35K
5:50 | 7:48/mi
23M
3:04:56
Rank: #12762 (+114)
35K → 23M
10:17 | 8:13/mi
24M
3:12:58
Rank: #12692 (+70)
23M → 24M
8:02 | 8:02/mi
40K· 24.85 mi
3:19:56
Rank: #12624 (+68)
24M → 40K
6:58 | 8:09/mi
25.2M
3:22:58
Rank: #12606 (+18)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:31:08
Rank: #12583 (+23)
25.2M → Finish
8:10 | 8:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:28
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:46:40
Pace8:08 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5224:518:0024:51
8:00
-
10K
6.21 mi11:40:3149:307:5824:39
7:56
-0:04
15K
9.32 mi12:05:081:14:077:5724:37
7:55
-0:01
20K
12.43 mi12:30:021:39:017:5824:54
8:01
+0:06
Half
13.11 mi12:35:291:44:287:585:27
7:59
-0:02
25K
15.53 mi12:54:462:03:457:5819:17
7:57
-0:02
30K
18.64 mi13:20:022:29:018:0025:16
8:08
+0:11
20M
20.00 mi13:31:072:40:068:0011:05
8:09
+0:01
21M
21.00 mi13:39:502:48:498:028:43
8:43
+0:34
35K
21.75 mi13:45:402:54:398:025:50
7:48
-0:55
23M
23.00 mi13:55:573:04:568:0210:17
8:13
+0:25
24M
24.00 mi14:03:593:12:588:028:02
8:02
-0:11
40K
24.85 mi14:10:573:19:568:036:58
8:09
+0:07
25.2M
25.20 mi14:13:593:22:588:033:02
8:48
+0:39
Finish
26.22 mi14:22:093:31:088:048:10
8:01
-0:47

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

7:48 /mi

Average Pace

8:04 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:19:23

94% of race

Time at Steady Pace

11:45

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:03 /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 mi11:15:5224:518:0024:51
8:00
#14010
10K
6.21 mi11:40:3149:307:5824:39
7:56
#14131
15K
9.32 mi12:05:081:14:077:5724:37
7:55
#13985
20K
12.43 mi12:30:021:39:017:5824:54
8:01
#13845
Half
13.11 mi12:35:291:44:287:585:27
7:59
#13858
25K
15.53 mi12:54:462:03:457:5819:17
7:57
#13612
30K
18.64 mi13:20:022:29:018:0025:16
8:08
#13252
20M
20.00 mi13:31:072:40:068:0011:05
8:09
#13092
21M
21.00 mi13:39:502:48:498:028:43
8:43
#12973
35K
21.75 mi13:45:402:54:398:025:50
7:48
#12876
23M
23.00 mi13:55:573:04:568:0210:17
8:13
#12762
24M
24.00 mi14:03:593:12:588:028:02
8:02
#12692
40K
24.85 mi14:10:573:19:568:036:58
8:09
#12624
25.2M
25.20 mi14:13:593:22:588:033:02
8:48
#12606
Finish
26.22 mi14:22:093:31:088:048:10
8:01
#12583
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi140104036403613774(Top 52%)3947(Top 35%)3947(Top 210%)
10K6.21 mi3.10 mi14131-1214119-834119-8314280(Top 54%)4220(Top 37%)4220(Top 225%)
15K9.32 mi3.11 mi13985+1464049+704049+7013774(Top 52%)3947(Top 35%)3947(Top 210%)
20K12.43 mi3.11 mi13845+1403988+613988+6113558(Top 51%)3844(Top 34%)3844(Top 205%)
Half13.11 mi0.68 mi13858-134001-134001-1314287(Top 54%)4231(Top 37%)4231(Top 225%)
25K15.53 mi2.42 mi13612+2463871+1303871+13012358(Top 46%)3286(Top 29%)3286(Top 175%)
30K18.64 mi3.11 mi13252+3603698+1733698+17311888(Top 45%)3119(Top 27%)3119(Top 166%)
20M20.00 mi1.36 mi13092+1603618+803618+8011423(Top 43%)2958(Top 26%)2958(Top 158%)
21M21.00 mi1.00 mi12973+1193573+453573+4511792(Top 44%)3298(Top 29%)3298(Top 176%)
35K21.75 mi0.75 mi12876+973532+413532+4110707(Top 40%)2741(Top 24%)2741(Top 146%)
23M23.00 mi1.25 mi12762+1143487+453487+4511304(Top 42%)3165(Top 28%)3165(Top 169%)
24M24.00 mi1.00 mi12692+703467+203467+2011498(Top 43%)3329(Top 29%)3329(Top 177%)
40K24.85 mi0.85 mi12624+683444+233444+2311051(Top 42%)3176(Top 28%)3176(Top 169%)
25.2M25.20 mi0.35 mi12606+183445-13445-111388(Top 43%)3400(Top 30%)3400(Top 181%)
Finish26.22 mi1.02 mi12583+233456-113456-1112251(Top 46%)3835(Top 34%)3835(Top 204%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

13774

Females

3947

F40-44

3947

5K→10K

3.1 - 6.2 mi

Top 54%
×5stories
+79ft-138ft

Overall

14280

Females

4220

F40-44

4220

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

13774

Females

3947

F40-44

3947

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

13558

Females

3844

F40-44

3844

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

14287

Females

4231

F40-44

4231

Half→25K

13.1 - 15.5 mi

Top 46%
×4stories
+66ft-88ft

Overall

12358

Females

3286

F40-44

3286

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

11888

Females

3119

F40-44

3119

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

11423

Females

2958

F40-44

2958

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

11792

Females

3298

F40-44

3298

21M→35K

21.0 - 21.8 mi

Top 40%
×7stories
+17ft-86ft

Overall

10707

Females

2741

F40-44

2741

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

11304

Females

3165

F40-44

3165

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

11498

Females

3329

F40-44

3329

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11051

Females

3176

F40-44

3176

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11388

Females

3400

F40-44

3400

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

12251

Females

3835

F40-44

3835

Passing Analysis

Category:
Athletes Passed
2361
Passed By
934
Net Change
+1427
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14010
5K → 10K229350-121#14010#14131
10K → 15K268122+146#14131#13985
15K → 20K241101+140#13985#13845
20K → Half2942-13#13845#13858
Half → 25K27630+246#13858#13612
25K → 30K40949+360#13612#13252
30K → 20M17818+160#13252#13092
20M → 21M16243+119#13092#12973
21M → 35K1069+97#12973#12876
35K → 23M14531+114#12876#12762
23M → 24M10636+70#12762#12692
24M → 40K9426+68#12692#12624
40K → 25.2M3618+18#12624#12606
25.2M → Finish8259+23#12606#12583
TOTALS2361934+1427
📊

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