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BOSTON MARATHON 2023

Katrina Morrissey

Bib: 932•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 9%
Gender (Female)
#0 / 11423
Top 0.9%
Division (F18-39)
#0 / 4884
Top 2%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:33
Rank: #1416
Start → 5K
19:33 | 6:18/mi
10K· 6.21 mi
39:06
Rank: #1544 (-128)
5K → 10K
19:33 | 6:18/mi
15K· 9.32 mi
58:45
Rank: #1598 (-54)
10K → 15K
19:39 | 6:20/mi
20K· 12.43 mi
1:18:25
Rank: #1560 (+38)
15K → 20K
19:39 | 6:20/mi
Half· 13.11 mi
1:22:44
Rank: #1584 (-24)
20K → Half
4:19 | 6:20/mi
25K· 15.53 mi
1:38:58
Rank: #1775 (-191)
Half → 25K
16:14 | 6:42/mi
30K· 18.64 mi
1:59:47
Rank: #1854 (-79)
25K → 30K
20:49 | 6:42/mi
20M
2:09:16
Rank: #1950 (-96)
30K → 20M
9:29 | 6:59/mi
21M
2:16:41
Rank: #2054 (-104)
20M → 21M
7:25 | 7:25/mi
35K· 21.75 mi
2:21:50
Rank: #2124 (-70)
21M → 35K
5:09 | 6:53/mi
23M
2:30:38
Rank: #2183 (-59)
35K → 23M
8:48 | 7:02/mi
24M
2:37:32
Rank: #2236 (-53)
23M → 24M
6:54 | 6:54/mi
40K· 24.85 mi
2:43:34
Rank: #2271 (-35)
24M → 40K
6:02 | 7:03/mi
25.2M
2:46:16
Rank: #2293 (-22)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
2:53:27
Rank: #2360 (-67)
25.2M → Finish
7:11 | 7:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:44
Pace6:19 /mi
2nd Half
Distance13.11 mi
Time1:30:43
Pace6:55 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:4119:336:1819:33
6:18
-
10K
6.21 mi10:39:1439:066:1819:33
6:18
0:00
15K
9.32 mi10:58:5358:456:1819:39
6:20
+0:02
20K
12.43 mi11:18:331:18:256:1919:39
6:20
0:00
Half
13.11 mi11:22:521:22:446:194:19
6:20
0:00
25K
15.53 mi11:39:061:38:586:2216:14
6:42
+0:22
30K
18.64 mi11:59:551:59:476:2620:49
6:42
0:00
20M
20.00 mi12:09:242:09:166:289:29
6:59
+0:17
21M
21.00 mi12:16:492:16:416:317:25
7:25
+0:26
35K
21.75 mi12:21:582:21:506:315:09
6:53
-0:32
23M
23.00 mi12:30:462:30:386:338:48
7:02
+0:09
24M
24.00 mi12:37:402:37:326:346:54
6:54
-0:08
40K
24.85 mi12:43:422:43:346:356:02
7:03
+0:09
25.2M
25.20 mi12:46:242:46:166:362:42
7:50
+0:47
Finish
26.22 mi12:53:352:53:276:377:11
7:03
-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

6:18 /mi

Average Pace

6:37 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:22:44

48% of race

Time at Steady Pace

1:20:36

46% of race

Time at Slower Pace

10:07

6% of race

Average Pace: 6:37 /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 mi10:19:4119:336:1819:33
6:18
#1416
10K
6.21 mi10:39:1439:066:1819:33
6:18
#1544
15K
9.32 mi10:58:5358:456:1819:39
6:20
#1598
20K
12.43 mi11:18:331:18:256:1919:39
6:20
#1560
Half
13.11 mi11:22:521:22:446:194:19
6:20
#1584
25K
15.53 mi11:39:061:38:586:2216:14
6:42
#1775
30K
18.64 mi11:59:551:59:476:2620:49
6:42
#1854
20M
20.00 mi12:09:242:09:166:289:29
6:59
#1950
21M
21.00 mi12:16:492:16:416:317:25
7:25
#2054
35K
21.75 mi12:21:582:21:506:315:09
6:53
#2124
23M
23.00 mi12:30:462:30:386:338:48
7:02
#2183
24M
24.00 mi12:37:402:37:326:346:54
6:54
#2236
40K
24.85 mi12:43:422:43:346:356:02
7:03
#2271
25.2M
25.20 mi12:46:242:46:166:362:42
7:50
#2293
Finish
26.22 mi12:53:352:53:276:377:11
7:03
#2360
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi141669691772(Top 7%)74(Top 0.6%)74(Top 2%)
10K6.21 mi3.10 mi1544-12869691757(Top 7%)75(Top 0.7%)75(Top 2%)
15K9.32 mi3.11 mi1598-5470-170-11772(Top 7%)74(Top 0.6%)74(Top 2%)
20K12.43 mi3.11 mi1560+3869+169+11512(Top 6%)66(Top 0.6%)66(Top 1%)
Half13.11 mi0.68 mi1584-2470-170-11941(Top 7%)75(Top 0.7%)75(Top 2%)
25K15.53 mi2.42 mi1775-19176-676-63349(Top 13%)170(Top 1%)170(Top 3%)
30K18.64 mi3.11 mi1854-7978-278-22390(Top 9%)114(Top 1.0%)114(Top 2%)
20M20.00 mi1.36 mi1950-9681-381-33929(Top 15%)271(Top 2%)271(Top 6%)
21M21.00 mi1.00 mi2054-10485-485-44224(Top 16%)346(Top 3%)346(Top 7%)
35K21.75 mi0.75 mi2124-7087-287-24714(Top 18%)431(Top 4%)431(Top 9%)
23M23.00 mi1.25 mi2183-5990-390-33942(Top 15%)310(Top 3%)310(Top 6%)
24M24.00 mi1.00 mi2236-5392-292-24196(Top 16%)372(Top 3%)372(Top 8%)
40K24.85 mi0.85 mi2271-3596-496-44171(Top 16%)439(Top 4%)439(Top 9%)
25.2M25.20 mi0.35 mi2293-2296965587(Top 21%)900(Top 8%)900(Top 18%)
Finish26.22 mi1.02 mi2360-67102-6102-65528(Top 21%)907(Top 8%)907(Top 19%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1772

Females

74

F18-39

74

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1757

Females

75

F18-39

75

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1772

Females

74

F18-39

74

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1512

Females

66

F18-39

66

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1941

Females

75

F18-39

75

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3349

Females

170

F18-39

170

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2390

Females

114

F18-39

114

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

3929

Females

271

F18-39

271

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4224

Females

346

F18-39

346

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4714

Females

431

F18-39

431

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

3942

Females

310

F18-39

310

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4196

Females

372

F18-39

372

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4171

Females

439

F18-39

439

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5587

Females

900

F18-39

900

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5528

Females

907

F18-39

907

Passing Analysis

Category:
Athletes Passed
262
Passed By
1206
Net Change
-944
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1416
5K → 10K25153-128#1416#1544
10K → 15K3690-54#1544#1598
15K → 20K6527+38#1598#1560
20K → Half226-24#1560#1584
Half → 25K3194-191#1584#1775
25K → 30K38117-79#1775#1854
30K → 20M12108-96#1854#1950
20M → 21M8112-104#1950#2054
21M → 35K676-70#2054#2124
35K → 23M2281-59#2124#2183
23M → 24M1366-53#2183#2236
24M → 40K1752-35#2236#2271
40K → 25.2M426-22#2271#2293
25.2M → Finish1178-67#2293#2360
TOTALS2621206-944
📊

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