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BOSTON MARATHON 2023

Katie Marx

Bib: 16833•F

AZ

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 40%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:36
Rank: #13417
Start → 5K
24:36 | 7:55/mi
10K· 6.21 mi
48:42
Rank: #13067 (+350)
5K → 10K
24:06 | 7:45/mi
15K· 9.32 mi
1:13:11
Rank: #13161 (-94)
10K → 15K
24:29 | 7:53/mi
20K· 12.43 mi
1:38:15
Rank: #13378 (-217)
15K → 20K
25:04 | 8:04/mi
Half· 13.11 mi
1:43:42
Rank: #13405 (-27)
20K → Half
5:27 | 7:59/mi
25K· 15.53 mi
2:03:39
Rank: #13550 (-145)
Half → 25K
19:57 | 8:14/mi
30K· 18.64 mi
2:30:33
Rank: #13905 (-355)
25K → 30K
26:54 | 8:39/mi
20M
2:43:15
Rank: #14303 (-398)
30K → 20M
12:42 | 9:21/mi
21M
2:52:59
Rank: #14468 (-165)
20M → 21M
9:44 | 9:44/mi
35K· 21.75 mi
2:59:17
Rank: #14489 (-21)
21M → 35K
6:18 | 8:25/mi
23M
3:10:24
Rank: #14523 (-34)
35K → 23M
11:07 | 8:53/mi
24M
3:19:03
Rank: #14537 (-14)
23M → 24M
8:39 | 8:39/mi
40K· 24.85 mi
3:26:29
Rank: #14524 (+13)
24M → 40K
7:26 | 8:42/mi
25.2M
3:29:37
Rank: #14487 (+37)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:38:08
Rank: #14457 (+30)
25.2M → Finish
8:31 | 8:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:42
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time1:54:26
Pace8:44 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:4924:367:5524:36
7:55
-
10K
6.21 mi11:38:5548:427:5024:06
7:45
-0:10
15K
9.32 mi12:03:241:13:117:5124:29
7:53
+0:08
20K
12.43 mi12:28:281:38:157:5425:04
8:04
+0:11
Half
13.11 mi12:33:551:43:427:555:27
7:59
-0:05
25K
15.53 mi12:53:522:03:397:5819:57
8:14
+0:15
30K
18.64 mi13:20:462:30:338:0526:54
8:39
+0:25
20M
20.00 mi13:33:282:43:158:1012:42
9:21
+0:42
21M
21.00 mi13:43:122:52:598:149:44
9:44
+0:23
35K
21.75 mi13:49:302:59:178:156:18
8:25
-1:19
23M
23.00 mi14:00:373:10:248:1711:07
8:53
+0:28
24M
24.00 mi14:09:163:19:038:188:39
8:39
-0:14
40K
24.85 mi14:16:423:26:298:187:26
8:42
+0:03
25.2M
25.20 mi14:19:503:29:378:193:08
9:05
+0:23
Finish
26.22 mi14:28:213:38:088:208:31
8:21
-0:44

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

7:45 /mi

Average Pace

8:20 /mi

Slowest Pace

9:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:42

48% of race

Time at Steady Pace

1:10:19

32% of race

Time at Slower Pace

44:07

20% of race

Average Pace: 8:19 /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 mi11:14:4924:367:5524:36
7:55
#13417
10K
6.21 mi11:38:5548:427:5024:06
7:45
#13067
15K
9.32 mi12:03:241:13:117:5124:29
7:53
#13161
20K
12.43 mi12:28:281:38:157:5425:04
8:04
#13378
Half
13.11 mi12:33:551:43:427:555:27
7:59
#13405
25K
15.53 mi12:53:522:03:397:5819:57
8:14
#13550
30K
18.64 mi13:20:462:30:338:0526:54
8:39
#13905
20M
20.00 mi13:33:282:43:158:1012:42
9:21
#14303
21M
21.00 mi13:43:122:52:598:149:44
9:44
#14468
35K
21.75 mi13:49:302:59:178:156:18
8:25
#14489
23M
23.00 mi14:00:373:10:248:1711:07
8:53
#14523
24M
24.00 mi14:09:163:19:038:188:39
8:39
#14537
40K
24.85 mi14:16:423:26:298:187:26
8:42
#14524
25.2M
25.20 mi14:19:503:29:378:193:08
9:05
#14487
Finish
26.22 mi14:28:213:38:088:208:31
8:21
#14457
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi134173679367913381(Top 50%)3719(Top 33%)3719(Top 76%)
10K6.21 mi3.10 mi13067+3503488+1913488+19112759(Top 48%)3292(Top 29%)3292(Top 67%)
15K9.32 mi3.11 mi13161-943562-743562-7413381(Top 50%)3719(Top 33%)3719(Top 76%)
20K12.43 mi3.11 mi13378-2173709-1473709-14714016(Top 53%)4123(Top 36%)4123(Top 84%)
Half13.11 mi0.68 mi13405-273728-193728-1914356(Top 54%)4300(Top 38%)4300(Top 88%)
25K15.53 mi2.42 mi13550-1453834-1063834-10614460(Top 54%)4487(Top 39%)4487(Top 92%)
30K18.64 mi3.11 mi13905-3554086-2524086-25215270(Top 57%)5095(Top 45%)5095(Top 104%)
20M20.00 mi1.36 mi14303-3984361-2754361-27518216(Top 68%)6853(Top 60%)6853(Top 140%)
21M21.00 mi1.00 mi14468-1654476-1154476-11516981(Top 64%)6174(Top 54%)6174(Top 126%)
35K21.75 mi0.75 mi14489-214502-264502-2614864(Top 56%)5019(Top 44%)5019(Top 103%)
23M23.00 mi1.25 mi14523-344538-364538-3615433(Top 58%)5409(Top 47%)5409(Top 111%)
24M24.00 mi1.00 mi14537-144573-354573-3515372(Top 58%)5453(Top 48%)5453(Top 112%)
40K24.85 mi0.85 mi14524+134591-184591-1814487(Top 54%)5017(Top 44%)5017(Top 103%)
25.2M25.20 mi0.35 mi14487+374580+114580+1113075(Top 49%)4273(Top 37%)4273(Top 87%)
Finish26.22 mi1.02 mi14457+304575+54575+514478(Top 54%)4986(Top 44%)4986(Top 102%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21stories
+97ft-345ft

Overall

13381

Females

3719

F18-39

3719

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

12759

Females

3292

F18-39

3292

10K→15K

6.2 - 9.3 mi

Top 50%
×3stories
+67ft-78ft

Overall

13381

Females

3719

F18-39

3719

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

14016

Females

4123

F18-39

4123

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

14356

Females

4300

F18-39

4300

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

14460

Females

4487

F18-39

4487

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

15270

Females

5095

F18-39

5095

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

18216

Females

6853

F18-39

6853

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

16981

Females

6174

F18-39

6174

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

14864

Females

5019

F18-39

5019

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

15433

Females

5409

F18-39

5409

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

15372

Females

5453

F18-39

5453

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14487

Females

5017

F18-39

5017

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13075

Females

4273

F18-39

4273

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

14478

Females

4986

F18-39

4986

Passing Analysis

Category:
Athletes Passed
1437
Passed By
2477
Net Change
-1040
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13417
5K → 10K519169+350#13417#13067
10K → 15K175269-94#13067#13161
15K → 20K116333-217#13161#13378
20K → Half2451-27#13378#13405
Half → 25K89234-145#13405#13550
25K → 30K96451-355#13550#13905
30K → 20M20418-398#13905#14303
20M → 21M38203-165#14303#14468
21M → 35K3859-21#14468#14489
35K → 23M69103-34#14489#14523
23M → 24M6781-14#14523#14537
24M → 40K6552+13#14537#14524
40K → 25.2M458+37#14524#14487
25.2M → Finish7646+30#14487#14457
TOTALS14372477-1040
📊

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