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BOSTON MARATHON 2023

Jennifer Dagnall

Bib: 21230•F

AR

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:40/mi
26:57
↑ 97↓ 3451.5%
10K· 6.21 mi
8:40/mi
53:54
↑ 79↓ 1380.4%
15K· 9.32 mi
9:27/mi
1:23:16
↑ 67↓ 78
20K· 12.43 mi
9:13/mi
1:51:55
↑ 106↓ 860.1%
Half· 13.11 mi
8:48/mi
1:57:55
↑ 19↓ 370.5%
25K· 15.53 mi
9:12/mi
2:20:14
↑ 66↓ 880.2%
30K· 18.64 mi
10:42/mi
2:53:28
↑ 181↓ 1480.2%
20M
10:02/mi
3:07:06
↑ 64↓ 500.2%
21M
11:04/mi
3:18:10
↑ 106↓ 241.6%
35K· 21.75 mi
9:33/mi
3:25:19
↑ 17↓ 861.7%
23M
9:33/mi
3:37:17
↑ 23↓ 630.6%
24M
9:17/mi
3:46:34
↓ 821.3%
40K· 24.85 mi
9:55/mi
3:55:03
↓ 200.3%
25.2M
13:06/mi
3:59:34
↑ 13↓ 160.2%
Finish· 26.22 mi
9:17/mi
4:09:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:55
Pace9:00 /mi
2nd Half
Distance13.11 mi
Time2:11:07
Pace10:00 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:0026:578:4026:57
8:40
-
10K
6.21 mi11:50:5753:548:4026:57
8:40
0:00
15K
9.32 mi12:20:191:23:168:5629:22
9:27
+0:47
20K
12.43 mi12:48:581:51:559:0028:39
9:13
-0:14
Half
13.11 mi12:54:581:57:559:006:00
8:48
-0:25
25K
15.53 mi13:17:172:20:149:0222:19
9:12
+0:24
30K
18.64 mi13:50:312:53:289:1833:14
10:42
+1:30
20M
20.00 mi14:04:093:07:069:2113:38
10:02
-0:40
21M
21.00 mi14:15:133:18:109:2611:04
11:04
+1:02
35K
21.75 mi14:22:223:25:199:267:09
9:33
-1:31
23M
23.00 mi14:34:203:37:179:2711:58
9:33
0:00
24M
24.00 mi14:43:373:46:349:269:17
9:17
-0:16
40K
24.85 mi14:52:063:55:039:278:29
9:55
+0:38
25.2M
25.20 mi14:56:373:59:349:304:31
13:06
+3:11
Finish
26.22 mi15:06:054:09:029:309:28
9:17
-3:49

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

8:40 /mi

Average Pace

9:30 /mi

Slowest Pace

13:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

59:54

24% of race

Time at Steady Pace

2:06:41

51% of race

Time at Slower Pace

1:02:27

25% of race

Average Pace: 9:30 /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 mi11:24:0026:578:4026:57
8:40
#18731
10K
6.21 mi11:50:5753:548:4026:57
8:40
#18976
15K
9.32 mi12:20:191:23:168:5629:22
9:27
#20277
20K
12.43 mi12:48:581:51:559:0028:39
9:13
#20394
Half
13.11 mi12:54:581:57:559:006:00
8:48
#20339
25K
15.53 mi13:17:172:20:149:0222:19
9:12
#20259
30K
18.64 mi13:50:312:53:289:1833:14
10:42
#20843
20M
20.00 mi14:04:093:07:069:2113:38
10:02
#20809
21M
21.00 mi14:15:133:18:109:2611:04
11:04
#20815
35K
21.75 mi14:22:223:25:199:267:09
9:33
#20771
23M
23.00 mi14:34:203:37:179:2711:58
9:33
#20609
24M
24.00 mi14:43:373:46:349:269:17
9:17
#20520
40K
24.85 mi14:52:063:55:039:278:29
9:55
#20486
25.2M
25.20 mi14:56:373:59:349:304:31
13:06
#20590
Finish
26.22 mi15:06:054:09:029:309:28
9:17
#20543
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi187317027702722113(Top 83%)8855(Top 78%)8855(Top 734%)
10K6.21 mi3.10 mi18976-2457135-1087135-10819293(Top 72%)7264(Top 64%)7264(Top 602%)
15K9.32 mi3.11 mi20277-13017894-7597894-75922113(Top 83%)8855(Top 78%)8855(Top 734%)
20K12.43 mi3.11 mi20394-1177941-477941-4720666(Top 78%)8040(Top 70%)8040(Top 666%)
Half13.11 mi0.68 mi20339+557907+347907+3419527(Top 73%)7405(Top 65%)7405(Top 614%)
25K15.53 mi2.42 mi20259+807851+567851+5619878(Top 75%)7630(Top 67%)7630(Top 632%)
30K18.64 mi3.11 mi20843-5848182-3318182-33122603(Top 85%)9244(Top 81%)9244(Top 766%)
20M20.00 mi1.36 mi20809+348183-18183-120573(Top 77%)8173(Top 72%)8173(Top 677%)
21M21.00 mi1.00 mi20815-68200-178200-1720970(Top 79%)8443(Top 74%)8443(Top 700%)
35K21.75 mi0.75 mi20771+448190+108190+1020046(Top 75%)7961(Top 70%)7961(Top 660%)
23M23.00 mi1.25 mi20609+1628109+818109+8118579(Top 70%)7178(Top 63%)7178(Top 595%)
24M24.00 mi1.00 mi20520+898074+358074+3518421(Top 69%)7128(Top 62%)7128(Top 591%)
40K24.85 mi0.85 mi20486+348059+158059+1519769(Top 74%)7933(Top 69%)7933(Top 657%)
25.2M25.20 mi0.35 mi20590-1048127-688127-6824086(Top 90%)10225(Top 90%)10225(Top 847%)
Finish26.22 mi1.02 mi20543+478109+188109+1819340(Top 73%)7640(Top 67%)7640(Top 633%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

22113

Females

8855

F50-54

8855

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

19293

Females

7264

F50-54

7264

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

22113

Females

8855

F50-54

8855

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

20666

Females

8040

F50-54

8040

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

19527

Females

7405

F50-54

7405

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

19878

Females

7630

F50-54

7630

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

22603

Females

9244

F50-54

9244

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

20573

Females

8173

F50-54

8173

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

20970

Females

8443

F50-54

8443

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

20046

Females

7961

F50-54

7961

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

18579

Females

7178

F50-54

7178

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

18421

Females

7128

F50-54

7128

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19769

Females

7933

F50-54

7933

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

24086

Females

10225

F50-54

10225

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

19340

Females

7640

F50-54

7640

Passing Analysis

Category:
Athletes Passed
1263
Passed By
3075
Net Change
-1812
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18731
5K → 10K233478-245#18731#18976
10K → 15K121313-1301#18976#20277
15K → 20K127244-117#20277#20394
20K → Half649+55#20394#20339
Half → 25K16585+80#20339#20259
25K → 30K33617-584#20259#20843
30K → 20M10167+34#20843#20809
20M → 21M5662-6#20809#20815
21M → 35K6521+44#20815#20771
35K → 23M1697+162#20771#20609
23M → 24M10011+89#20609#20520
24M → 40K6228+34#20520#20486
40K → 25.2M6110-104#20486#20590
25.2M → Finish7023+47#20590#20543
TOTALS12633075-1812
📊

Passing Visuals

Category:
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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