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BOSTON MARATHON 2023

Kristin Gendron

Bib: 16428•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 38%
Gender (Female)
#0 / 11423
Top 19%
Division (F18-39)
#0 / 4884
Top 33%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:56
Rank: #11492
Start → 5K
23:56 | 7:42/mi
10K· 6.21 mi
47:48
Rank: #11736 (-244)
5K → 10K
23:52 | 7:41/mi
15K· 9.32 mi
1:12:24
Rank: #12379 (-643)
10K → 15K
24:36 | 7:55/mi
20K· 12.43 mi
1:36:34
Rank: #12126 (+253)
15K → 20K
24:10 | 7:47/mi
Half· 13.11 mi
1:41:49
Rank: #12110 (+16)
20K → Half
5:15 | 7:42/mi
25K· 15.53 mi
2:00:42
Rank: #11910 (+200)
Half → 25K
18:53 | 7:47/mi
30K· 18.64 mi
2:25:12
Rank: #11517 (+393)
25K → 30K
24:30 | 7:53/mi
20M
2:36:02
Rank: #11374 (+143)
30K → 20M
10:50 | 7:58/mi
21M
2:44:01
Rank: #11088 (+286)
20M → 21M
7:59 | 7:59/mi
35K· 21.75 mi
2:49:38
Rank: #10970 (+118)
21M → 35K
5:37 | 7:30/mi
23M
2:59:10
Rank: #10725 (+245)
35K → 23M
9:32 | 7:37/mi
24M
3:06:27
Rank: #10495 (+230)
23M → 24M
7:17 | 7:17/mi
40K· 24.85 mi
3:12:50
Rank: #10302 (+193)
24M → 40K
6:23 | 7:28/mi
25.2M
3:15:38
Rank: #10232 (+70)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:23:04
Rank: #10066 (+166)
25.2M → Finish
7:26 | 7:18/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:41:49
Pace7:46 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:41:15
Pace7:43 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0523:567:4223:56
7:42
-
10K
6.21 mi11:37:5747:487:4223:52
7:41
-0:01
15K
9.32 mi12:02:331:12:247:4624:36
7:55
+0:14
20K
12.43 mi12:26:431:36:347:4624:10
7:47
-0:08
Half
13.11 mi12:31:581:41:497:465:15
7:42
-0:05
25K
15.53 mi12:50:512:00:427:4618:53
7:47
+0:05
30K
18.64 mi13:15:212:25:127:4724:30
7:53
+0:06
20M
20.00 mi13:26:112:36:027:4810:50
7:58
+0:05
21M
21.00 mi13:34:102:44:017:497:59
7:59
+0:01
35K
21.75 mi13:39:472:49:387:485:37
7:30
-0:29
23M
23.00 mi13:49:192:59:107:479:32
7:37
+0:07
24M
24.00 mi13:56:363:06:277:467:17
7:17
-0:20
40K
24.85 mi14:02:593:12:507:466:23
7:28
+0:11
25.2M
25.20 mi14:05:473:15:387:462:48
8:07
+0:39
Finish
26.22 mi14:13:133:23:047:457:26
7:18
-0:49

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

7:17 /mi

Average Pace

7:45 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:16

99% of race

Time at Steady Pace

2:48

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:45 /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 mi11:14:0523:567:4223:56
7:42
#11492
10K
6.21 mi11:37:5747:487:4223:52
7:41
#11736
15K
9.32 mi12:02:331:12:247:4624:36
7:55
#12379
20K
12.43 mi12:26:431:36:347:4624:10
7:47
#12126
Half
13.11 mi12:31:581:41:497:465:15
7:42
#12110
25K
15.53 mi12:50:512:00:427:4618:53
7:47
#11910
30K
18.64 mi13:15:212:25:127:4724:30
7:53
#11517
20M
20.00 mi13:26:112:36:027:4810:50
7:58
#11374
21M
21.00 mi13:34:102:44:017:497:59
7:59
#11088
35K
21.75 mi13:39:472:49:387:485:37
7:30
#10970
23M
23.00 mi13:49:192:59:107:479:32
7:37
#10725
24M
24.00 mi13:56:363:06:277:467:17
7:17
#10495
40K
24.85 mi14:02:593:12:507:466:23
7:28
#10302
25.2M
25.20 mi14:05:473:15:387:462:48
8:07
#10232
Finish
26.22 mi14:13:133:23:047:457:26
7:18
#10066
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi114922588258813714(Top 52%)3904(Top 34%)3904(Top 80%)
10K6.21 mi3.10 mi11736-2442723-1352723-13512076(Top 45%)2910(Top 25%)2910(Top 60%)
15K9.32 mi3.11 mi12379-6433108-3853108-38513714(Top 52%)3904(Top 34%)3904(Top 80%)
20K12.43 mi3.11 mi12126+2532992+1162992+11611555(Top 43%)2709(Top 24%)2709(Top 55%)
Half13.11 mi0.68 mi12110+162982+102982+1011862(Top 45%)2814(Top 25%)2814(Top 58%)
25K15.53 mi2.42 mi11910+2002886+962886+9611010(Top 41%)2487(Top 22%)2487(Top 51%)
30K18.64 mi3.11 mi11517+3932695+1912695+19110034(Top 38%)2179(Top 19%)2179(Top 45%)
20M20.00 mi1.36 mi11374+1432640+552640+5510083(Top 38%)2265(Top 20%)2265(Top 46%)
21M21.00 mi1.00 mi11088+2862506+1342506+1347295(Top 27%)1245(Top 11%)1245(Top 25%)
35K21.75 mi0.75 mi10970+1182457+492457+498632(Top 32%)1751(Top 15%)1751(Top 36%)
23M23.00 mi1.25 mi10725+2452370+872370+877221(Top 27%)1263(Top 11%)1263(Top 26%)
24M24.00 mi1.00 mi10495+2302277+932277+936310(Top 24%)1029(Top 9%)1029(Top 21%)
40K24.85 mi0.85 mi10302+1932203+742203+746561(Top 25%)1197(Top 10%)1197(Top 25%)
25.2M25.20 mi0.35 mi10232+702180+232180+237310(Top 27%)1554(Top 14%)1554(Top 32%)
Finish26.22 mi1.02 mi10066+1662125+552125+557142(Top 27%)1489(Top 13%)1489(Top 30%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

13714

Females

3904

F18-39

3904

5K→10K

3.1 - 6.2 mi

Top 45%
×5stories
+79ft-138ft

Overall

12076

Females

2910

F18-39

2910

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

13714

Females

3904

F18-39

3904

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

11555

Females

2709

F18-39

2709

20K→Half

12.4 - 13.1 mi

Top 45%
×2stories
+19ft-37ft

Overall

11862

Females

2814

F18-39

2814

Half→25K

13.1 - 15.5 mi

Top 41%
×4stories
+66ft-88ft

Overall

11010

Females

2487

F18-39

2487

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10034

Females

2179

F18-39

2179

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10083

Females

2265

F18-39

2265

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7295

Females

1245

F18-39

1245

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

8632

Females

1751

F18-39

1751

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7221

Females

1263

F18-39

1263

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6310

Females

1029

F18-39

1029

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6561

Females

1197

F18-39

1197

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7310

Females

1554

F18-39

1554

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7142

Females

1489

F18-39

1489

Passing Analysis

Category:
Athletes Passed
2766*
Passed By
1340
Net Change
+1426
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11492
5K → 10K197441-244#11492#11736
10K → 15K47690-643#11736#12379
15K → 20K31360+253#12379#12126
20K → Half3721+16#12126#12110
Half → 25K23737+200#12110#11910
25K → 30K42532+393#11910#11517
30K → 20M16219+143#11517#11374
20M → 21M2882+286#11374#11088
21M → 35K1279+118#11088#10970
35K → 23M2505+245#10970#10725
23M → 24M2300+230#10725#10495
24M → 40K1996+193#10495#10302
40K → 25.2M78*8+70#10302#10232
25.2M → Finish17610+166#10232#10066
TOTALS2766*1340+1426

* 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