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BOSTON MARATHON 2023

Kali Mcgown

Bib: 10439•F

ME

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 21%
Gender (Female)
#0 / 11423
Top 4%
Division (F18-39)
#0 / 4884
Top 9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:34
Rank: #5892
Start → 5K
6:56/mi
21:34 split
10K· 6.21 mi
42:42
Rank: #5607 (+285)
5K → 10K
6:48/mi
21:08 split
15K· 9.32 mi
1:04:13
Rank: #5780 (-173)
10K → 15K
6:56/mi
21:31 split
20K· 12.43 mi
1:26:05
Rank: #5889 (-109)
15K → 20K
7:02/mi
21:52 split
Half· 13.11 mi
1:30:49
Rank: #5909 (-20)
20K → Half
6:56/mi
4:44 split
25K· 15.53 mi
1:47:58
Rank: #5909
Half → 25K
7:04/mi
17:09 split
30K· 18.64 mi
2:11:02
Rank: #5999 (-90)
25K → 30K
7:25/mi
23:04 split
20M
2:21:09
Rank: #5990 (+9)
30K → 20M
7:27/mi
10:07 split
21M
2:29:06
Rank: #5997 (-7)
20M → 21M
7:57/mi
7:57 split
35K· 21.75 mi
2:34:17
Rank: #5920 (+77)
21M → 35K
6:56/mi
5:11 split
23M
2:43:14
Rank: #5803 (+117)
35K → 23M
7:09/mi
8:57 split
24M
2:50:22
Rank: #5733 (+70)
23M → 24M
7:09/mi
7:08 split
40K· 24.85 mi
2:56:31
Rank: #5647 (+86)
24M → 40K
7:12/mi
6:09 split
25.2M
2:59:11
Rank: #5619 (+28)
40K → 25.2M
7:44/mi
2:40 split
Finish· 26.22 mi
3:06:23
Rank: #5561 (+58)
25.2M → Finish
7:04/mi
7:12 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:49
Pace6:56 /mi
2nd Half
Distance13.11 mi
Time1:35:34
Pace7:17 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:4921:346:5621:34
6:56
-
10K
6.21 mi11:08:5742:426:5221:08
6:48
-0:08
15K
9.32 mi11:30:281:04:136:5321:31
6:56
+0:08
20K
12.43 mi11:52:201:26:056:5621:52
7:02
+0:06
Half
13.11 mi11:57:041:30:496:564:44
6:56
-0:06
25K
15.53 mi12:14:131:47:586:5717:09
7:04
+0:08
30K
18.64 mi12:37:172:11:027:0223:04
7:25
+0:21
20M
20.00 mi12:47:242:21:097:0310:07
7:27
+0:02
21M
21.00 mi12:55:212:29:067:067:57
7:57
+0:30
35K
21.75 mi13:00:322:34:177:065:11
6:56
-1:01
23M
23.00 mi13:09:292:43:147:068:57
7:09
+0:13
24M
24.00 mi13:16:372:50:227:067:08
7:09
0:00
40K
24.85 mi13:22:462:56:317:066:09
7:12
+0:03
25.2M
25.20 mi13:25:262:59:117:072:40
7:44
+0:32
Finish
26.22 mi13:32:383:06:237:077:12
7:04
-0:40

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

6:48 /mi

Average Pace

7:07 /mi

Slowest Pace

7:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:55:46

94% of race

Time at Steady Pace

10:37

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:07 /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 mi10:47:4921:346:5621:34
6:56
#5892
10K
6.21 mi11:08:5742:426:5221:08
6:48
#5607
15K
9.32 mi11:30:281:04:136:5321:31
6:56
#5780
20K
12.43 mi11:52:201:26:056:5621:52
7:02
#5889
Half
13.11 mi11:57:041:30:496:564:44
6:56
#5909
25K
15.53 mi12:14:131:47:586:5717:09
7:04
#5909
30K
18.64 mi12:37:172:11:027:0223:04
7:25
#5999
20M
20.00 mi12:47:242:21:097:0310:07
7:27
#5990
21M
21.00 mi12:55:212:29:067:067:57
7:57
#5997
35K
21.75 mi13:00:322:34:177:065:11
6:56
#5920
23M
23.00 mi13:09:292:43:147:068:57
7:09
#5803
24M
24.00 mi13:16:372:50:227:067:08
7:09
#5733
40K
24.85 mi13:22:462:56:317:066:09
7:12
#5647
25.2M
25.20 mi13:25:262:59:117:072:40
7:44
#5619
Finish
26.22 mi13:32:383:06:237:077:12
7:04
#5561
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 mi58924844846124(Top 23%)561(Top 5%)561(Top 11%)
10K6.21 mi3.10 mi5607+285437+47437+475348(Top 20%)404(Top 4%)404(Top 8%)
15K9.32 mi3.11 mi5780-173467-30467-306124(Top 23%)561(Top 5%)561(Top 11%)
20K12.43 mi3.11 mi5889-109494-27494-276227(Top 23%)579(Top 5%)579(Top 12%)
Half13.11 mi0.68 mi5909-20497-3497-36258(Top 24%)558(Top 5%)558(Top 11%)
25K15.53 mi2.42 mi5909494+3494+35995(Top 23%)548(Top 5%)548(Top 11%)
30K18.64 mi3.11 mi5999-90525-31525-316747(Top 25%)844(Top 7%)844(Top 17%)
20M20.00 mi1.36 mi5990+9542-17542-176452(Top 24%)829(Top 7%)829(Top 17%)
21M21.00 mi1.00 mi5997-7555-13555-137048(Top 26%)1143(Top 10%)1143(Top 23%)
35K21.75 mi0.75 mi5920+77541+14541+144985(Top 19%)500(Top 4%)500(Top 10%)
23M23.00 mi1.25 mi5803+117529+12529+124516(Top 17%)425(Top 4%)425(Top 9%)
24M24.00 mi1.00 mi5733+70520+9520+95429(Top 20%)707(Top 6%)707(Top 14%)
40K24.85 mi0.85 mi5647+86511+9511+94872(Top 18%)602(Top 5%)602(Top 12%)
25.2M25.20 mi0.35 mi5619+28512-1512-15097(Top 19%)742(Top 6%)742(Top 15%)
Finish26.22 mi1.02 mi5561+58511+1511+15637(Top 21%)950(Top 8%)950(Top 19%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21story building
+97ft-345ft

Overall

6124

Females

561

F18-39

561

5K→10K

3.1 - 6.2 mi

Top 20%
×5story building
+79ft-138ft

Overall

5348

Females

404

F18-39

404

10K→15K

6.2 - 9.3 mi

Top 23%
×3story building
+67ft-78ft

Overall

6124

Females

561

F18-39

561

15K→20K

9.3 - 12.4 mi

Top 23%
×5story building
+106ft-86ft

Overall

6227

Females

579

F18-39

579

20K→Half

12.4 - 13.1 mi

Top 24%
×2story building
+19ft-37ft

Overall

6258

Females

558

F18-39

558

Half→25K

13.1 - 15.5 mi

Top 23%
×4story building
+66ft-88ft

Overall

5995

Females

548

F18-39

548

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6747

Females

844

F18-39

844

30K→20M

18.6 - 20.0 mi

Top 24%
×5story building
+64ft-50ft

Overall

6452

Females

829

F18-39

829

20M→21M

20.0 - 21.0 mi

Top 26%
×8story building
+106ft-24ft

Overall

7048

Females

1143

F18-39

1143

21M→35K

21.0 - 21.8 mi

Top 19%
×7story building
+17ft-86ft

Overall

4985

Females

500

F18-39

500

35K→23M

21.8 - 23.0 mi

Top 17%
×5story building
+23ft-63ft

Overall

4516

Females

425

F18-39

425

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5429

Females

707

F18-39

707

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4872

Females

602

F18-39

602

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5097

Females

742

F18-39

742

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

5637

Females

950

F18-39

950

Passing Analysis

Category:
Athletes Passed
1328
Passed By
997
Net Change
+331
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5892
5K → 10K385100+285#5892#5607
10K → 15K52225-173#5607#5780
15K → 20K69178-109#5780#5889
20K → Half1838-20#5889#5909
Half → 25K79790#5909#5909
25K → 30K100190-90#5909#5999
30K → 20M6657+9#5999#5990
20M → 21M5259-7#5990#5997
21M → 35K825+77#5997#5920
35K → 23M1258+117#5920#5803
23M → 24M8818+70#5803#5733
24M → 40K9711+86#5733#5647
40K → 25.2M357+28#5647#5619
25.2M → Finish8022+58#5619#5561
TOTALS1328997+331
📊

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