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BOSTON MARATHON 2023

Janet Morrice

Bib: 15725•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 37%
Masters (Masters Women)
#0 / 6539
Top 24%
Division (F50-54)
#0 / 1207
Top 16%
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
7:54/mi
24:34
↑ 97↓ 3451.5%
10K· 6.21 mi
7:56/mi
49:13
↑ 79↓ 1380.4%
15K· 9.32 mi
8:01/mi
1:14:06
↑ 67↓ 78
20K· 12.43 mi
8:06/mi
1:39:15
↑ 106↓ 860.1%
Half· 13.11 mi
7:59/mi
1:44:42
↑ 19↓ 370.5%
25K· 15.53 mi
8:05/mi
2:04:18
↑ 66↓ 880.2%
30K· 18.64 mi
8:13/mi
2:29:51
↑ 181↓ 1480.2%
20M
8:23/mi
2:41:15
↑ 64↓ 500.2%
21M
9:07/mi
2:50:22
↑ 106↓ 241.6%
35K· 21.75 mi
8:15/mi
2:56:32
↑ 17↓ 861.7%
23M
8:50/mi
3:07:35
↑ 23↓ 630.6%
24M
8:32/mi
3:16:07
↓ 821.3%
40K· 24.85 mi
9:06/mi
3:23:54
↓ 200.3%
25.2M
9:37/mi
3:27:13
↑ 13↓ 160.2%
Finish· 26.22 mi
8:43/mi
3:36:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:42
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:51:24
Pace8:30 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:2724:347:5424:34
7:54
-
10K
6.21 mi11:19:0649:137:5524:39
7:56
+0:02
15K
9.32 mi11:43:591:14:067:5724:53
8:01
+0:05
20K
12.43 mi12:09:081:39:157:5925:09
8:06
+0:05
Half
13.11 mi12:14:351:44:427:595:27
7:59
-0:07
25K
15.53 mi12:34:112:04:188:0019:36
8:05
+0:06
30K
18.64 mi12:59:442:29:518:0225:33
8:13
+0:08
20M
20.00 mi13:11:082:41:158:0411:24
8:23
+0:10
21M
21.00 mi13:20:152:50:228:079:07
9:07
+0:44
35K
21.75 mi13:26:252:56:328:076:10
8:15
-0:52
23M
23.00 mi13:37:283:07:358:0911:03
8:50
+0:35
24M
24.00 mi13:46:003:16:078:108:32
8:32
-0:18
40K
24.85 mi13:53:473:23:548:127:47
9:06
+0:34
25.2M
25.20 mi13:57:063:27:138:133:19
9:37
+0:31
Finish
26.22 mi14:05:593:36:068:158:53
8:43
-0:54

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

7:54 /mi

Average Pace

8:15 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

54:40

25% of race

Time at Steady Pace

1:52:45

52% of race

Time at Slower Pace

48:41

23% of race

Average Pace: 8:15 /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 mi10:54:2724:347:5424:34
7:54
#13321
10K
6.21 mi11:19:0649:137:5524:39
7:56
#13757
15K
9.32 mi11:43:591:14:067:5724:53
8:01
#13975
20K
12.43 mi12:09:081:39:157:5925:09
8:06
#13997
Half
13.11 mi12:14:351:44:427:595:27
7:59
#14003
25K
15.53 mi12:34:112:04:188:0019:36
8:05
#13888
30K
18.64 mi12:59:442:29:518:0225:33
8:13
#13593
20M
20.00 mi13:11:082:41:158:0411:24
8:23
#13536
21M
21.00 mi13:20:152:50:228:079:07
9:07
#13544
35K
21.75 mi13:26:252:56:328:076:10
8:15
#13547
23M
23.00 mi13:37:283:07:358:0911:03
8:50
#13637
24M
24.00 mi13:46:003:16:078:108:32
8:32
#13670
40K
24.85 mi13:53:473:23:548:127:47
9:06
#13795
25.2M
25.20 mi13:57:063:27:138:133:19
9:37
#13827
Finish
26.22 mi14:05:593:36:068:158:53
8:43
#13938
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi133213624362414473(Top 54%)4365(Top 38%)4365(Top 362%)
10K6.21 mi3.10 mi13757-4363903-2793903-27914293(Top 54%)4233(Top 37%)4233(Top 351%)
15K9.32 mi3.11 mi13975-2184043-1404043-14014473(Top 54%)4365(Top 38%)4365(Top 362%)
20K12.43 mi3.11 mi13997-224087-444087-4414209(Top 53%)4231(Top 37%)4231(Top 351%)
Half13.11 mi0.68 mi14003-64087408714333(Top 54%)4277(Top 37%)4277(Top 354%)
25K15.53 mi2.42 mi13888+1154047+404047+4013418(Top 50%)3873(Top 34%)3873(Top 321%)
30K18.64 mi3.11 mi13593+2953896+1513896+15112514(Top 47%)3475(Top 30%)3475(Top 288%)
20M20.00 mi1.36 mi13536+573882+143882+1412987(Top 49%)3856(Top 34%)3856(Top 319%)
21M21.00 mi1.00 mi13544-83905-233905-2314074(Top 53%)4521(Top 40%)4521(Top 375%)
35K21.75 mi0.75 mi13547-33913-83913-813779(Top 52%)4442(Top 39%)4442(Top 368%)
23M23.00 mi1.25 mi13637-903997-843997-8415136(Top 57%)5253(Top 46%)5253(Top 435%)
24M24.00 mi1.00 mi13670-334045-484045-4814689(Top 55%)5057(Top 44%)5057(Top 419%)
40K24.85 mi0.85 mi13795-1254142-974142-9716652(Top 63%)6205(Top 54%)6205(Top 514%)
25.2M25.20 mi0.35 mi13827-324172-304172-3015761(Top 59%)5717(Top 50%)5717(Top 474%)
Finish26.22 mi1.02 mi13938-1114256-844256-8416577(Top 62%)6131(Top 54%)6131(Top 508%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14473

Females

4365

F50-54

4365

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

14293

Females

4233

F50-54

4233

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14473

Females

4365

F50-54

4365

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

14209

Females

4231

F50-54

4231

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

14333

Females

4277

F50-54

4277

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

13418

Females

3873

F50-54

3873

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

12514

Females

3475

F50-54

3475

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

12987

Females

3856

F50-54

3856

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14074

Females

4521

F50-54

4521

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

13779

Females

4442

F50-54

4442

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

15136

Females

5253

F50-54

5253

23M→24M

23.0 - 24.0 mi

Top 55%
×6story building
+12ft-82ft

Overall

14689

Females

5057

F50-54

5057

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16652

Females

6205

F50-54

6205

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15761

Females

5717

F50-54

5717

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

16577

Females

6131

F50-54

6131

Passing Analysis

Category:
Athletes Passed
1454
Passed By
2071
Net Change
-617
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13321
5K → 10K134570-436#13321#13757
10K → 15K100318-218#13757#13975
15K → 20K180202-22#13975#13997
20K → Half3238-6#13997#14003
Half → 25K19075+115#14003#13888
25K → 30K34449+295#13888#13593
30K → 20M11962+57#13593#13536
20M → 21M9199-8#13536#13544
21M → 35K6063-3#13544#13547
35K → 23M60150-90#13547#13637
23M → 24M5891-33#13637#13670
24M → 40K36161-125#13670#13795
40K → 25.2M1749-32#13795#13827
25.2M → Finish33144-111#13827#13938
TOTALS14542071-617
📊

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