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BOSTON MARATHON 2023

Maria Karabova

Bib: 18708•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 43%
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
24:08
Rank: #12083
Start → 5K
24:08 | 7:46/mi
10K· 6.21 mi
48:23
Rank: #12580 (-497)
5K → 10K
24:15 | 7:48/mi
15K· 9.32 mi
1:13:07
Rank: #13090 (-510)
10K → 15K
24:44 | 7:58/mi
20K· 12.43 mi
1:38:54
Rank: #13769 (-679)
15K → 20K
25:47 | 8:18/mi
Half· 13.11 mi
1:44:32
Rank: #13898 (-129)
20K → Half
5:38 | 8:15/mi
25K· 15.53 mi
2:05:16
Rank: #14371 (-473)
Half → 25K
20:44 | 8:33/mi
30K· 18.64 mi
2:32:48
Rank: #14789 (-418)
25K → 30K
27:32 | 8:52/mi
20M
2:45:16
Rank: #14989 (-200)
30K → 20M
12:28 | 9:11/mi
21M
2:54:27
Rank: #14935 (+54)
20M → 21M
9:11 | 9:11/mi
35K· 21.75 mi
3:00:50
Rank: #14954 (-19)
21M → 35K
6:23 | 8:32/mi
23M
3:12:15
Rank: #15043 (-89)
35K → 23M
11:25 | 9:07/mi
24M
3:20:53
Rank: #15033 (+10)
23M → 24M
8:38 | 8:38/mi
40K· 24.85 mi
3:28:26
Rank: #15017 (+16)
24M → 40K
7:33 | 8:50/mi
25.2M
3:31:43
Rank: #15017
40K → 25.2M
3:17 | 9:31/mi
Finish· 26.22 mi
3:40:29
Rank: #15062 (-45)
25.2M → Finish
8:46 | 8:36/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:32
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:55:57
Pace8:51 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:1024:087:4624:08
7:46
-
10K
6.21 mi11:42:2548:237:4724:15
7:48
+0:02
15K
9.32 mi12:07:091:13:077:5124:44
7:58
+0:10
20K
12.43 mi12:32:561:38:547:5725:47
8:18
+0:20
Half
13.11 mi12:38:341:44:327:585:38
8:15
-0:03
25K
15.53 mi12:59:182:05:168:0420:44
8:33
+0:18
30K
18.64 mi13:26:502:32:488:1227:32
8:52
+0:19
20M
20.00 mi13:39:182:45:168:1612:28
9:11
+0:19
21M
21.00 mi13:48:292:54:278:189:11
9:11
0:00
35K
21.75 mi13:54:523:00:508:196:23
8:32
-0:39
23M
23.00 mi14:06:173:12:158:2211:25
9:07
+0:35
24M
24.00 mi14:14:553:20:538:228:38
8:38
-0:29
40K
24.85 mi14:22:283:28:268:237:33
8:50
+0:12
25.2M
25.20 mi14:25:453:31:438:243:17
9:31
+0:41
Finish
26.22 mi14:34:313:40:298:258:46
8:36
-0:55

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

7:46 /mi

Average Pace

8:25 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:32

47% of race

Time at Steady Pace

52:04

24% of race

Time at Slower Pace

1:03:53

29% of race

Average Pace: 8:25 /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 mi11:18:1024:087:4624:08
7:46
#12083
10K
6.21 mi11:42:2548:237:4724:15
7:48
#12580
15K
9.32 mi12:07:091:13:077:5124:44
7:58
#13090
20K
12.43 mi12:32:561:38:547:5725:47
8:18
#13769
Half
13.11 mi12:38:341:44:327:585:38
8:15
#13898
25K
15.53 mi12:59:182:05:168:0420:44
8:33
#14371
30K
18.64 mi13:26:502:32:488:1227:32
8:52
#14789
20M
20.00 mi13:39:182:45:168:1612:28
9:11
#14989
21M
21.00 mi13:48:292:54:278:189:11
9:11
#14935
35K
21.75 mi13:54:523:00:508:196:23
8:32
#14954
23M
23.00 mi14:06:173:12:158:2211:25
9:07
#15043
24M
24.00 mi14:14:553:20:538:228:38
8:38
#15033
40K
24.85 mi14:22:283:28:268:237:33
8:50
#15017
25.2M
25.20 mi14:25:453:31:438:243:17
9:31
#15017
Finish
26.22 mi14:34:313:40:298:258:46
8:36
#15062
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 mi120832921292114086(Top 53%)4136(Top 36%)4136(Top 85%)
10K6.21 mi3.10 mi12580-4973202-2813202-28113197(Top 50%)3552(Top 31%)3552(Top 73%)
15K9.32 mi3.11 mi13090-5103519-3173519-31714086(Top 53%)4136(Top 36%)4136(Top 85%)
20K12.43 mi3.11 mi13769-6793948-4293948-42915606(Top 59%)5098(Top 45%)5098(Top 104%)
Half13.11 mi0.68 mi13898-1294026-784026-7816222(Top 61%)5423(Top 47%)5423(Top 111%)
25K15.53 mi2.42 mi14371-4734329-3034329-30316498(Top 62%)5717(Top 50%)5717(Top 117%)
30K18.64 mi3.11 mi14789-4184610-2814610-28116442(Top 62%)5748(Top 50%)5748(Top 118%)
20M20.00 mi1.36 mi14989-2004765-1554765-15517457(Top 66%)6434(Top 56%)6434(Top 132%)
21M21.00 mi1.00 mi14935+544753+124753+1214356(Top 54%)4700(Top 41%)4700(Top 96%)
35K21.75 mi0.75 mi14954-194785-324785-3215496(Top 58%)5402(Top 47%)5402(Top 111%)
23M23.00 mi1.25 mi15043-894870-854870-8516628(Top 62%)6091(Top 53%)6091(Top 125%)
24M24.00 mi1.00 mi15033+104876-64876-615279(Top 57%)5391(Top 47%)5391(Top 110%)
40K24.85 mi0.85 mi15017+164887-114887-1115262(Top 57%)5444(Top 48%)5444(Top 111%)
25.2M25.20 mi0.35 mi150174899-124899-1215320(Top 58%)5481(Top 48%)5481(Top 112%)
Finish26.22 mi1.02 mi15062-454945-464945-4616009(Top 60%)5810(Top 51%)5810(Top 119%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

14086

Females

4136

F18-39

4136

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

13197

Females

3552

F18-39

3552

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

14086

Females

4136

F18-39

4136

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

15606

Females

5098

F18-39

5098

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

16222

Females

5423

F18-39

5423

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

16498

Females

5717

F18-39

5717

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

16442

Females

5748

F18-39

5748

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

17457

Females

6434

F18-39

6434

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

14356

Females

4700

F18-39

4700

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

15496

Females

5402

F18-39

5402

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

16628

Females

6091

F18-39

6091

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

15279

Females

5391

F18-39

5391

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15262

Females

5444

F18-39

5444

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

15320

Females

5481

F18-39

5481

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

16009

Females

5810

F18-39

5810

Passing Analysis

Category:
Athletes Passed
819
Passed By
3798
Net Change
-2979
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12083
5K → 10K130627-497#12083#12580
10K → 15K59569-510#12580#13090
15K → 20K52731-679#13090#13769
20K → Half10139-129#13769#13898
Half → 25K42515-473#13898#14371
25K → 30K66484-418#14371#14789
30K → 20M38238-200#14789#14989
20M → 21M11258+54#14989#14935
21M → 35K4362-19#14935#14954
35K → 23M58147-89#14954#15043
23M → 24M6252+10#15043#15033
24M → 40K6953+16#15033#15017
40K → 25.2M36360#15017#15017
25.2M → Finish4287-45#15017#15062
TOTALS8193798-2979
📊

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