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BOSTON MARATHON 2023

Katherine Norwood

Bib: 10112•F

ME

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 24%
Gender (Female)
#0 / 11423
Top 6%
Division (F18-39)
#0 / 4884
Top 12%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:39
Rank: #3218
Start → 5K
20:39 | 6:39/mi
10K· 6.21 mi
41:15
Rank: #3443 (-225)
5K → 10K
20:36 | 6:38/mi
15K· 9.32 mi
1:02:36
Rank: #4182 (-739)
10K → 15K
21:21 | 6:52/mi
20K· 12.43 mi
1:24:34
Rank: #4902 (-720)
15K → 20K
21:58 | 7:04/mi
Half· 13.11 mi
1:29:18
Rank: #4967 (-65)
20K → Half
4:44 | 6:56/mi
25K· 15.53 mi
1:46:55
Rank: #5463 (-496)
Half → 25K
17:37 | 7:16/mi
30K· 18.64 mi
2:10:14
Rank: #5731 (-268)
25K → 30K
23:19 | 7:30/mi
20M
2:20:29
Rank: #5794 (-63)
30K → 20M
10:15 | 7:33/mi
21M
2:28:48
Rank: #5909 (-115)
20M → 21M
8:19 | 8:19/mi
35K· 21.75 mi
2:34:18
Rank: #5923 (-14)
21M → 35K
5:30 | 7:21/mi
23M
2:44:25
Rank: #6095 (-172)
35K → 23M
10:07 | 8:05/mi
24M
2:52:34
Rank: #6260 (-165)
23M → 24M
8:09 | 8:09/mi
40K· 24.85 mi
2:59:21
Rank: #6332 (-72)
24M → 40K
6:47 | 7:56/mi
25.2M
3:02:21
Rank: #6370 (-38)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:10:07
Rank: #6447 (-77)
25.2M → Finish
7:46 | 7:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:18
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:40:49
Pace7:41 /mi
📊Positive Split: 12.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:4320:396:3920:39
6:39
-
10K
6.21 mi11:07:1941:156:3820:36
6:38
-0:01
15K
9.32 mi11:28:401:02:366:4321:21
6:52
+0:14
20K
12.43 mi11:50:381:24:346:4821:58
7:04
+0:12
Half
13.11 mi11:55:221:29:186:494:44
6:56
-0:08
25K
15.53 mi12:12:591:46:556:5317:37
7:16
+0:20
30K
18.64 mi12:36:182:10:146:5923:19
7:30
+0:14
20M
20.00 mi12:46:332:20:297:0110:15
7:33
+0:03
21M
21.00 mi12:54:522:28:487:058:19
8:19
+0:46
35K
21.75 mi13:00:222:34:187:065:30
7:21
-0:58
23M
23.00 mi13:10:292:44:257:0910:07
8:05
+0:44
24M
24.00 mi13:18:382:52:347:118:09
8:09
+0:04
40K
24.85 mi13:25:252:59:217:136:47
7:56
-0:13
25.2M
25.20 mi13:28:253:02:217:143:00
8:42
+0:46
Finish
26.22 mi13:36:113:10:077:157:46
7:37
-1:05

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

6:38 /mi

Average Pace

7:15 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:18

47% of race

Time at Steady Pace

1:04:27

34% of race

Time at Slower Pace

36:22

19% of race

Average Pace: 7:15 /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 mi10:46:4320:396:3920:39
6:39
#3218
10K
6.21 mi11:07:1941:156:3820:36
6:38
#3443
15K
9.32 mi11:28:401:02:366:4321:21
6:52
#4182
20K
12.43 mi11:50:381:24:346:4821:58
7:04
#4902
Half
13.11 mi11:55:221:29:186:494:44
6:56
#4967
25K
15.53 mi12:12:591:46:556:5317:37
7:16
#5463
30K
18.64 mi12:36:182:10:146:5923:19
7:30
#5731
20M
20.00 mi12:46:332:20:297:0110:15
7:33
#5794
21M
21.00 mi12:54:522:28:487:058:19
8:19
#5909
35K
21.75 mi13:00:222:34:187:065:30
7:21
#5923
23M
23.00 mi13:10:292:44:257:0910:07
8:05
#6095
24M
24.00 mi13:18:382:52:347:118:09
8:09
#6260
40K
24.85 mi13:25:252:59:217:136:47
7:56
#6332
25.2M
25.20 mi13:28:253:02:217:143:00
8:42
#6370
Finish
26.22 mi13:36:113:10:077:157:46
7:37
#6447
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi32181751755764(Top 22%)480(Top 4%)480(Top 10%)
10K6.21 mi3.10 mi3443-225187-12187-123743(Top 14%)207(Top 2%)207(Top 4%)
15K9.32 mi3.11 mi4182-739255-68255-685764(Top 22%)480(Top 4%)480(Top 10%)
20K12.43 mi3.11 mi4902-720333-78333-786406(Top 24%)627(Top 5%)627(Top 13%)
Half13.11 mi0.68 mi4967-65342-9342-96276(Top 24%)576(Top 5%)576(Top 12%)
25K15.53 mi2.42 mi5463-496415-73415-737072(Top 27%)854(Top 7%)854(Top 17%)
30K18.64 mi3.11 mi5731-268470-55470-557257(Top 27%)1015(Top 9%)1015(Top 21%)
20M20.00 mi1.36 mi5794-63496-26496-267094(Top 27%)1044(Top 9%)1044(Top 21%)
21M21.00 mi1.00 mi5909-115535-39535-399327(Top 35%)2052(Top 18%)2052(Top 42%)
35K21.75 mi0.75 mi5923-14542-7542-77502(Top 28%)1294(Top 11%)1294(Top 26%)
23M23.00 mi1.25 mi6095-172595-53595-5310309(Top 39%)2653(Top 23%)2653(Top 54%)
24M24.00 mi1.00 mi6260-165644-49644-4912253(Top 46%)3713(Top 33%)3713(Top 76%)
40K24.85 mi0.85 mi6332-72675-31675-319599(Top 36%)2444(Top 21%)2444(Top 50%)
25.2M25.20 mi0.35 mi6370-38692-17692-1710757(Top 40%)3031(Top 27%)3031(Top 62%)
Finish26.22 mi1.02 mi6447-77728-36728-369417(Top 35%)2422(Top 21%)2422(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

5764

Females

480

F18-39

480

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3743

Females

207

F18-39

207

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

5764

Females

480

F18-39

480

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6406

Females

627

F18-39

627

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6276

Females

576

F18-39

576

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7072

Females

854

F18-39

854

25K→30K

15.5 - 18.6 mi

Top 27%
×9stories
+181ft-148ft

Overall

7257

Females

1015

F18-39

1015

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7094

Females

1044

F18-39

1044

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9327

Females

2052

F18-39

2052

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

7502

Females

1294

F18-39

1294

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

10309

Females

2653

F18-39

2653

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

12253

Females

3713

F18-39

3713

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9599

Females

2444

F18-39

2444

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10757

Females

3031

F18-39

3031

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9417

Females

2422

F18-39

2422

Passing Analysis

Category:
Athletes Passed
414
Passed By
3643
Net Change
-3229
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3218
5K → 10K99324-225#3218#3443
10K → 15K12751-739#3443#4182
15K → 20K8728-720#4182#4902
20K → Half671-65#4902#4967
Half → 25K27523-496#4967#5463
25K → 30K54322-268#5463#5731
30K → 20M40103-63#5731#5794
20M → 21M25140-115#5794#5909
21M → 35K2640-14#5909#5923
35K → 23M26198-172#5923#6095
23M → 24M24189-165#6095#6260
24M → 40K31103-72#6260#6332
40K → 25.2M1351-38#6332#6370
25.2M → Finish23100-77#6370#6447
TOTALS4143643-3229
📊

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