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BOSTON MARATHON 2023

Kristin Johnson

Bib: 16729•F

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 17%
Masters (Masters Women)
#0 / 6539
Top 7%
Division (F50-54)
#0 / 1207
Top 4%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:50
Rank: #11204
Start → 5K
23:50 | 7:40/mi
10K· 6.21 mi
47:33
Rank: #11371 (-167)
5K → 10K
23:43 | 7:38/mi
15K· 9.32 mi
1:11:15
Rank: #11314 (+57)
10K → 15K
23:42 | 7:38/mi
20K· 12.43 mi
1:34:54
Rank: #11007 (+307)
15K → 20K
23:39 | 7:37/mi
Half· 13.11 mi
1:40:01
Rank: #10971 (+36)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:58:23
Rank: #10664 (+307)
Half → 25K
18:22 | 7:35/mi
30K· 18.64 mi
2:22:42
Rank: #10398 (+266)
25K → 30K
24:19 | 7:50/mi
20M
2:33:22
Rank: #10306 (+92)
30K → 20M
10:40 | 7:51/mi
21M
2:41:49
Rank: #10266 (+40)
20M → 21M
8:27 | 8:27/mi
35K· 21.75 mi
2:47:23
Rank: #10164 (+102)
21M → 35K
5:34 | 7:26/mi
23M
2:57:11
Rank: #10031 (+133)
35K → 23M
9:48 | 7:50/mi
24M
3:04:32
Rank: #9845 (+186)
23M → 24M
7:21 | 7:21/mi
40K· 24.85 mi
3:11:07
Rank: #9754 (+91)
24M → 40K
6:35 | 7:42/mi
25.2M
3:14:01
Rank: #9717 (+37)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:21:39
Rank: #9634 (+83)
25.2M → Finish
7:38 | 7:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:01
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:41:38
Pace7:45 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0423:507:4023:50
7:40
-
10K
6.21 mi11:37:4747:337:3923:43
7:38
-0:02
15K
9.32 mi12:01:291:11:157:3923:42
7:38
0:00
20K
12.43 mi12:25:081:34:547:3823:39
7:37
-0:01
Half
13.11 mi12:30:151:40:017:385:07
7:30
-0:07
25K
15.53 mi12:48:371:58:237:3718:22
7:35
+0:05
30K
18.64 mi13:12:562:22:427:3924:19
7:50
+0:15
20M
20.00 mi13:23:362:33:227:4010:40
7:51
+0:01
21M
21.00 mi13:32:032:41:497:428:27
8:27
+0:36
35K
21.75 mi13:37:372:47:237:425:34
7:26
-1:01
23M
23.00 mi13:47:252:57:117:429:48
7:50
+0:24
24M
24.00 mi13:54:463:04:327:417:21
7:21
-0:29
40K
24.85 mi14:01:213:11:077:416:35
7:42
+0:21
25.2M
25.20 mi14:04:153:14:017:422:54
8:25
+0:43
Finish
26.22 mi14:11:533:21:397:427:38
7:29
-0:56

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

7:21 /mi

Average Pace

7:42 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:18

94% of race

Time at Steady Pace

11:21

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:41 /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 mi11:14:0423:507:4023:50
7:40
#11204
10K
6.21 mi11:37:4747:337:3923:43
7:38
#11371
15K
9.32 mi12:01:291:11:157:3923:42
7:38
#11314
20K
12.43 mi12:25:081:34:547:3823:39
7:37
#11007
Half
13.11 mi12:30:151:40:017:385:07
7:30
#10971
25K
15.53 mi12:48:371:58:237:3718:22
7:35
#10664
30K
18.64 mi13:12:562:22:427:3924:19
7:50
#10398
20M
20.00 mi13:23:362:33:227:4010:40
7:51
#10306
21M
21.00 mi13:32:032:41:497:428:27
8:27
#10266
35K
21.75 mi13:37:372:47:237:425:34
7:26
#10164
23M
23.00 mi13:47:252:57:117:429:48
7:50
#10031
24M
24.00 mi13:54:463:04:327:417:21
7:21
#9845
40K
24.85 mi14:01:213:11:077:416:35
7:42
#9754
25.2M
25.20 mi14:04:153:14:017:422:54
8:25
#9717
Finish
26.22 mi14:11:533:21:397:427:38
7:29
#9634
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi112042435243511250(Top 42%)2486(Top 22%)2486(Top 206%)
10K6.21 mi3.10 mi11371-1672530-952530-9511646(Top 44%)2671(Top 23%)2671(Top 221%)
15K9.32 mi3.11 mi11314+572496+342496+3411250(Top 42%)2486(Top 22%)2486(Top 206%)
20K12.43 mi3.11 mi11007+3072333+1632333+16310187(Top 38%)1997(Top 17%)1997(Top 165%)
Half13.11 mi0.68 mi10971+362318+152318+1510286(Top 39%)2019(Top 18%)2019(Top 167%)
25K15.53 mi2.42 mi10664+3072182+1362182+1369367(Top 35%)1716(Top 15%)1716(Top 142%)
30K18.64 mi3.11 mi10398+2662102+802102+809578(Top 36%)1956(Top 17%)1956(Top 162%)
20M20.00 mi1.36 mi10306+922072+302072+309249(Top 35%)1908(Top 17%)1908(Top 158%)
21M21.00 mi1.00 mi10266+402080-82080-810188(Top 38%)2463(Top 22%)2463(Top 204%)
35K21.75 mi0.75 mi10164+1022038+422038+428159(Top 31%)1577(Top 14%)1577(Top 131%)
23M23.00 mi1.25 mi10031+1332006+322006+328628(Top 32%)1855(Top 16%)1855(Top 154%)
24M24.00 mi1.00 mi9845+1861956+501956+506775(Top 25%)1197(Top 10%)1197(Top 99%)
40K24.85 mi0.85 mi9754+911945+111945+118015(Top 30%)1753(Top 15%)1753(Top 145%)
25.2M25.20 mi0.35 mi9717+371938+71938+79020(Top 34%)2246(Top 20%)2246(Top 186%)
Finish26.22 mi1.02 mi9634+831931+71931+78507(Top 32%)2028(Top 18%)2028(Top 168%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21stories
+97ft-345ft

Overall

11250

Females

2486

F50-54

2486

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

11646

Females

2671

F50-54

2671

10K→15K

6.2 - 9.3 mi

Top 42%
×3stories
+67ft-78ft

Overall

11250

Females

2486

F50-54

2486

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10187

Females

1997

F50-54

1997

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10286

Females

2019

F50-54

2019

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9367

Females

1716

F50-54

1716

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

9578

Females

1956

F50-54

1956

30K→20M

18.6 - 20.0 mi

Top 35%
×5stories
+64ft-50ft

Overall

9249

Females

1908

F50-54

1908

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10188

Females

2463

F50-54

2463

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8159

Females

1577

F50-54

1577

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

8628

Females

1855

F50-54

1855

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

6775

Females

1197

F50-54

1197

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8015

Females

1753

F50-54

1753

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9020

Females

2246

F50-54

2246

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

8507

Females

2028

F50-54

2028

Passing Analysis

Category:
Athletes Passed
2424*
Passed By
854
Net Change
+1570
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11204
5K → 10K231398-167#11204#11371
10K → 15K206149+57#11371#11314
15K → 20K34437+307#11314#11007
20K → Half4610+36#11007#10971
Half → 25K31811+307#10971#10664
25K → 30K31953+266#10664#10398
30K → 20M120*28+92#10398#10306
20M → 21M10363+40#10306#10266
21M → 35K1042+102#10266#10164
35K → 23M156*23+133#10164#10031
23M → 24M194*8+186#10031#9845
24M → 40K118*27+91#9845#9754
40K → 25.2M5316+37#9754#9717
25.2M → Finish112*29+83#9717#9634
TOTALS2424*854+1570

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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