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BOSTON MARATHON 2023

Jennifer Baldwin

Bib: 23736•F

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F60-64)
#0 / 527
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:37
Rank: #19949
Start → 5K
27:37 | 8:53/mi
10K· 6.21 mi
56:11
Rank: #20818 (-869)
5K → 10K
28:34 | 9:12/mi
15K· 9.32 mi
1:25:04
Rank: #21135 (-317)
10K → 15K
28:53 | 9:18/mi
20K· 12.43 mi
1:55:08
Rank: #21404 (-269)
15K → 20K
30:04 | 9:41/mi
Half· 13.11 mi
2:01:47
Rank: #21464 (-60)
20K → Half
6:39 | 9:45/mi
25K· 15.53 mi
2:25:56
Rank: #21582 (-118)
Half → 25K
24:09 | 9:58/mi
30K· 18.64 mi
2:57:56
Rank: #21609 (-27)
25K → 30K
32:00 | 10:18/mi
20M
3:11:46
Rank: #21564 (+45)
30K → 20M
13:50 | 10:11/mi
21M
3:22:55
Rank: #21537 (+27)
20M → 21M
11:09 | 11:09/mi
35K· 21.75 mi
3:30:26
Rank: #21524 (+13)
21M → 35K
7:31 | 10:03/mi
23M
3:43:27
Rank: #21497 (+27)
35K → 23M
13:01 | 10:24/mi
24M
3:53:42
Rank: #21501 (-4)
23M → 24M
10:15 | 10:15/mi
40K· 24.85 mi
4:02:19
Rank: #21445 (+56)
24M → 40K
8:37 | 10:05/mi
25.2M
4:06:03
Rank: #21415 (+30)
40K → 25.2M
3:44 | 10:50/mi
Finish· 26.22 mi
4:16:19
Rank: #21437 (-22)
25.2M → Finish
10:16 | 10:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:47
Pace9:17 /mi
2nd Half
Distance13.11 mi
Time2:14:32
Pace10:16 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:1027:378:5327:37
8:53
-
10K
6.21 mi11:51:4456:119:0328:34
9:12
+0:19
15K
9.32 mi12:20:371:25:049:0828:53
9:18
+0:06
20K
12.43 mi12:50:411:55:089:1630:04
9:41
+0:23
Half
13.11 mi12:57:202:01:479:176:39
9:45
+0:04
25K
15.53 mi13:21:292:25:569:2424:09
9:58
+0:13
30K
18.64 mi13:53:292:57:569:3332:00
10:18
+0:20
20M
20.00 mi14:07:193:11:469:3513:50
10:11
-0:07
21M
21.00 mi14:18:283:22:559:4011:09
11:09
+0:58
35K
21.75 mi14:25:593:30:269:417:31
10:03
-1:06
23M
23.00 mi14:39:003:43:279:4313:01
10:24
+0:21
24M
24.00 mi14:49:153:53:429:4410:15
10:15
-0:09
40K
24.85 mi14:57:524:02:199:458:37
10:05
-0:10
25.2M
25.20 mi15:01:364:06:039:463:44
10:50
+0:45
Finish
26.22 mi15:11:524:16:199:4710:16
10:04
-0:46

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

8:53 /mi

Average Pace

9:47 /mi

Slowest Pace

11:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:47

48% of race

Time at Steady Pace

1:46:38

42% of race

Time at Slower Pace

27:54

11% of race

Average Pace: 9:47 /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 mi11:23:1027:378:5327:37
8:53
#19949
10K
6.21 mi11:51:4456:119:0328:34
9:12
#20818
15K
9.32 mi12:20:371:25:049:0828:53
9:18
#21135
20K
12.43 mi12:50:411:55:089:1630:04
9:41
#21404
Half
13.11 mi12:57:202:01:479:176:39
9:45
#21464
25K
15.53 mi13:21:292:25:569:2424:09
9:58
#21582
30K
18.64 mi13:53:292:57:569:3332:00
10:18
#21609
20M
20.00 mi14:07:193:11:469:3513:50
10:11
#21564
21M
21.00 mi14:18:283:22:559:4011:09
11:09
#21537
35K
21.75 mi14:25:593:30:269:417:31
10:03
#21524
23M
23.00 mi14:39:003:43:279:4313:01
10:24
#21497
24M
24.00 mi14:49:153:53:429:4410:15
10:15
#21501
40K
24.85 mi14:57:524:02:199:458:37
10:05
#21445
25.2M
25.20 mi15:01:364:06:039:463:44
10:50
#21415
Finish
26.22 mi15:11:524:16:199:4710:16
10:04
#21437
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi199497782778221624(Top 81%)8569(Top 75%)8569(Top 1626%)
10K6.21 mi3.10 mi20818-8698216-4348216-43421611(Top 81%)8606(Top 75%)8606(Top 1633%)
15K9.32 mi3.11 mi21135-3178353-1378353-13721624(Top 81%)8569(Top 75%)8569(Top 1626%)
20K12.43 mi3.11 mi21404-2698497-1448497-14422087(Top 83%)8853(Top 78%)8853(Top 1680%)
Half13.11 mi0.68 mi21464-608526-298526-2922757(Top 85%)9212(Top 81%)9212(Top 1748%)
25K15.53 mi2.42 mi21582-1188590-648590-6422130(Top 83%)8907(Top 78%)8907(Top 1690%)
30K18.64 mi3.11 mi21609-278619-298619-2921775(Top 82%)8779(Top 77%)8779(Top 1666%)
20M20.00 mi1.36 mi21564+458601+188601+1820970(Top 79%)8397(Top 74%)8397(Top 1593%)
21M21.00 mi1.00 mi21537+278597+48597+421163(Top 79%)8548(Top 75%)8548(Top 1622%)
35K21.75 mi0.75 mi21524+138598-18598-121421(Top 80%)8725(Top 76%)8725(Top 1656%)
23M23.00 mi1.25 mi21497+278598859821065(Top 79%)8560(Top 75%)8560(Top 1624%)
24M24.00 mi1.00 mi21501-48615-178615-1721453(Top 81%)8821(Top 77%)8821(Top 1674%)
40K24.85 mi0.85 mi21445+568595+208595+2020197(Top 76%)8166(Top 71%)8166(Top 1550%)
25.2M25.20 mi0.35 mi21415+308583+128583+1220083(Top 75%)8114(Top 71%)8114(Top 1540%)
Finish26.22 mi1.02 mi21437-228607-248607-2421974(Top 83%)9103(Top 80%)9103(Top 1727%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21stories
+97ft-345ft

Overall

21624

Females

8569

F60-64

8569

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

21611

Females

8606

F60-64

8606

10K→15K

6.2 - 9.3 mi

Top 81%
×3stories
+67ft-78ft

Overall

21624

Females

8569

F60-64

8569

15K→20K

9.3 - 12.4 mi

Top 83%
×5stories
+106ft-86ft

Overall

22087

Females

8853

F60-64

8853

20K→Half

12.4 - 13.1 mi

Top 85%
×2stories
+19ft-37ft

Overall

22757

Females

9212

F60-64

9212

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

22130

Females

8907

F60-64

8907

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

21775

Females

8779

F60-64

8779

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

20970

Females

8397

F60-64

8397

20M→21M

20.0 - 21.0 mi

Top 79%
×8stories
+106ft-24ft

Overall

21163

Females

8548

F60-64

8548

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

21421

Females

8725

F60-64

8725

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

21065

Females

8560

F60-64

8560

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

21453

Females

8821

F60-64

8821

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20197

Females

8166

F60-64

8166

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

20083

Females

8114

F60-64

8114

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

21974

Females

9103

F60-64

9103

Passing Analysis

Category:
Athletes Passed
839
Passed By
2327
Net Change
-1488
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19949
5K → 10K58927-869#19949#20818
10K → 15K62379-317#20818#21135
15K → 20K59328-269#21135#21404
20K → Half1070-60#21404#21464
Half → 25K65183-118#21464#21582
25K → 30K127154-27#21582#21609
30K → 20M7530+45#21609#21564
20M → 21M7851+27#21564#21537
21M → 35K3724+13#21537#21524
35K → 23M7346+27#21524#21497
23M → 24M4650-4#21497#21501
24M → 40K7115+56#21501#21445
40K → 25.2M366+30#21445#21415
25.2M → Finish4264-22#21415#21437
TOTALS8392327-1488
📊

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