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BOSTON MARATHON 2023

Kaitlyn Duran

Bib: 14904•F

IN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 16%
Division (F18-39)
#0 / 4884
Top 30%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:21
Rank: #9775
Start → 5K
23:21 | 7:31/mi
10K· 6.21 mi
46:43
Rank: #10215 (-440)
5K → 10K
23:22 | 7:31/mi
15K· 9.32 mi
1:09:49
Rank: #9951 (+264)
10K → 15K
23:06 | 7:26/mi
20K· 12.43 mi
1:33:33
Rank: #10070 (-119)
15K → 20K
23:44 | 7:38/mi
Half· 13.11 mi
1:38:37
Rank: #10036 (+34)
20K → Half
5:04 | 7:26/mi
25K· 15.53 mi
1:57:05
Rank: #9946 (+90)
Half → 25K
18:28 | 7:37/mi
30K· 18.64 mi
2:21:48
Rank: #10023 (-77)
25K → 30K
24:43 | 7:57/mi
20M
2:32:18
Rank: #9855 (+168)
30K → 20M
10:30 | 7:44/mi
21M
2:40:41
Rank: #9817 (+38)
20M → 21M
8:23 | 8:23/mi
35K· 21.75 mi
2:46:16
Rank: #9750 (+67)
21M → 35K
5:35 | 7:28/mi
23M
2:56:04
Rank: #9650 (+100)
35K → 23M
9:48 | 7:50/mi
24M
3:03:53
Rank: #9627 (+23)
23M → 24M
7:49 | 7:49/mi
40K· 24.85 mi
3:10:41
Rank: #9600 (+27)
24M → 40K
6:48 | 7:57/mi
25.2M
3:13:36
Rank: #9579 (+21)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:21:13
Rank: #9512 (+67)
25.2M → Finish
7:37 | 7:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:37
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:42:36
Pace7:50 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:0623:217:3123:21
7:31
-
10K
6.21 mi11:17:2846:437:3123:22
7:31
0:00
15K
9.32 mi11:40:341:09:497:2923:06
7:26
-0:05
20K
12.43 mi12:04:181:33:337:3223:44
7:38
+0:12
Half
13.11 mi12:09:221:38:377:315:04
7:26
-0:12
25K
15.53 mi12:27:501:57:057:3218:28
7:37
+0:11
30K
18.64 mi12:52:332:21:487:3624:43
7:57
+0:20
20M
20.00 mi13:03:032:32:187:3710:30
7:44
-0:13
21M
21.00 mi13:11:262:40:417:398:23
8:23
+0:39
35K
21.75 mi13:17:012:46:167:395:35
7:28
-0:55
23M
23.00 mi13:26:492:56:047:399:48
7:50
+0:22
24M
24.00 mi13:34:383:03:537:407:49
7:49
-0:01
40K
24.85 mi13:41:263:10:417:406:48
7:57
+0:08
25.2M
25.20 mi13:44:213:13:367:412:55
8:27
+0:30
Finish
26.22 mi13:51:583:21:137:417:37
7:28
-0:59

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

7:26 /mi

Average Pace

7:41 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:09:55

94% of race

Time at Steady Pace

11:18

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:40 /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 mi10:54:0623:217:3123:21
7:31
#9775
10K
6.21 mi11:17:2846:437:3123:22
7:31
#10215
15K
9.32 mi11:40:341:09:497:2923:06
7:26
#9951
20K
12.43 mi12:04:181:33:337:3223:44
7:38
#10070
Half
13.11 mi12:09:221:38:377:315:04
7:26
#10036
25K
15.53 mi12:27:501:57:057:3218:28
7:37
#9946
30K
18.64 mi12:52:332:21:487:3624:43
7:57
#10023
20M
20.00 mi13:03:032:32:187:3710:30
7:44
#9855
21M
21.00 mi13:11:262:40:417:398:23
8:23
#9817
35K
21.75 mi13:17:012:46:167:395:35
7:28
#9750
23M
23.00 mi13:26:492:56:047:399:48
7:50
#9650
24M
24.00 mi13:34:383:03:537:407:49
7:49
#9627
40K
24.85 mi13:41:263:10:417:406:48
7:57
#9600
25.2M
25.20 mi13:44:213:13:367:412:55
8:27
#9579
Finish
26.22 mi13:51:583:21:137:417:37
7:28
#9512
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9775174717479660(Top 36%)1693(Top 15%)1693(Top 35%)
10K6.21 mi3.10 mi10215-4401934-1871934-18710633(Top 40%)2118(Top 19%)2118(Top 43%)
15K9.32 mi3.11 mi9951+2641805+1291805+1299660(Top 36%)1693(Top 15%)1693(Top 35%)
20K12.43 mi3.11 mi10070-1191865-601865-6010420(Top 39%)2101(Top 18%)2101(Top 43%)
Half13.11 mi0.68 mi10036+341850+151850+159679(Top 36%)1750(Top 15%)1750(Top 36%)
25K15.53 mi2.42 mi9946+901829+211829+219683(Top 36%)1862(Top 16%)1862(Top 38%)
30K18.64 mi3.11 mi10023-771901-721901-7210544(Top 40%)2408(Top 21%)2408(Top 49%)
20M20.00 mi1.36 mi9855+1681854+471854+478395(Top 32%)1559(Top 14%)1559(Top 32%)
21M21.00 mi1.00 mi9817+381859-51859-59757(Top 37%)2266(Top 20%)2266(Top 46%)
35K21.75 mi0.75 mi9750+671845+141845+148330(Top 31%)1632(Top 14%)1632(Top 33%)
23M23.00 mi1.25 mi9650+1001841+41841+48624(Top 32%)1851(Top 16%)1851(Top 38%)
24M24.00 mi1.00 mi9627+231854-131854-139936(Top 37%)2554(Top 22%)2554(Top 52%)
40K24.85 mi0.85 mi9600+271868-141868-149747(Top 37%)2523(Top 22%)2523(Top 52%)
25.2M25.20 mi0.35 mi9579+211875-71875-79296(Top 35%)2355(Top 21%)2355(Top 48%)
Finish26.22 mi1.02 mi9512+671871+41871+48390(Top 32%)1991(Top 17%)1991(Top 41%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9660

Females

1693

F18-39

1693

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

10633

Females

2118

F18-39

2118

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9660

Females

1693

F18-39

1693

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10420

Females

2101

F18-39

2101

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

9679

Females

1750

F18-39

1750

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

9683

Females

1862

F18-39

1862

25K→30K

15.5 - 18.6 mi

Top 40%
×9stories
+181ft-148ft

Overall

10544

Females

2408

F18-39

2408

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8395

Females

1559

F18-39

1559

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

9757

Females

2266

F18-39

2266

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8330

Females

1632

F18-39

1632

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

8624

Females

1851

F18-39

1851

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

9936

Females

2554

F18-39

2554

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9747

Females

2523

F18-39

2523

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9296

Females

2355

F18-39

2355

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

8390

Females

1991

F18-39

1991

Passing Analysis

Category:
Athletes Passed
1727*
Passed By
1463
Net Change
+263
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9775
5K → 10K146585-440#9775#10215
10K → 15K329*65+264#10215#9951
15K → 20K128247-119#9951#10070
20K → Half47*13+34#10070#10036
Half → 25K161*71+90#10036#9946
25K → 30K125202-77#9946#10023
30K → 20M187*19+168#10023#9855
20M → 21M9456+38#9855#9817
21M → 35K7912+67#9817#9750
35K → 23M14545+100#9750#9650
23M → 24M7047+23#9650#9627
24M → 40K67*40+27#9627#9600
40K → 25.2M4726+21#9600#9579
25.2M → Finish10235+67#9579#9512
TOTALS1727*1463+263

* 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