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BOSTON MARATHON 2023

Mackenzie Harrington

Bib: 31276•F

OR

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 36%
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
27:29
Rank: #19718
Start → 5K
27:29 | 8:51/mi
10K· 6.21 mi
52:33
Rank: #17610 (+2108)
5K → 10K
25:04 | 8:04/mi
15K· 9.32 mi
1:17:22
Rank: #16518 (+1092)
10K → 15K
24:49 | 7:59/mi
20K· 12.43 mi
1:42:02
Rank: #15646 (+872)
15K → 20K
24:40 | 7:56/mi
Half· 13.11 mi
1:47:21
Rank: #15511 (+135)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
2:06:41
Rank: #15031 (+480)
Half → 25K
19:20 | 7:58/mi
30K· 18.64 mi
2:32:21
Rank: #14615 (+416)
25K → 30K
25:40 | 8:16/mi
20M
2:43:37
Rank: #14422 (+193)
30K → 20M
11:16 | 8:17/mi
21M
2:52:20
Rank: #14265 (+157)
20M → 21M
8:43 | 8:43/mi
35K· 21.75 mi
2:58:18
Rank: #14158 (+107)
21M → 35K
5:58 | 7:59/mi
23M
3:08:34
Rank: #13954 (+204)
35K → 23M
10:16 | 8:12/mi
24M
3:16:45
Rank: #13869 (+85)
23M → 24M
8:11 | 8:11/mi
40K· 24.85 mi
3:23:54
Rank: #13793 (+76)
24M → 40K
7:09 | 8:22/mi
25.2M
3:26:55
Rank: #13743 (+50)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:35:11
Rank: #13685 (+58)
25.2M → Finish
8:16 | 8:07/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:47:21
Pace8:11 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:47:50
Pace8:14 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:4727:298:5127:29
8:51
-
10K
6.21 mi12:11:5152:338:2725:04
8:04
-0:47
15K
9.32 mi12:36:401:17:228:1824:49
7:59
-0:05
20K
12.43 mi13:01:201:42:028:1324:40
7:56
-0:03
Half
13.11 mi13:06:391:47:218:115:19
7:48
-0:08
25K
15.53 mi13:25:592:06:418:0919:20
7:58
+0:10
30K
18.64 mi13:51:392:32:218:1025:40
8:16
+0:18
20M
20.00 mi14:02:552:43:378:1111:16
8:17
+0:01
21M
21.00 mi14:11:382:52:208:128:43
8:43
+0:26
35K
21.75 mi14:17:362:58:188:125:58
7:59
-0:44
23M
23.00 mi14:27:523:08:348:1210:16
8:12
+0:13
24M
24.00 mi14:36:033:16:458:128:11
8:11
-0:01
40K
24.85 mi14:43:123:23:548:127:09
8:22
+0:11
25.2M
25.20 mi14:46:133:26:558:133:01
8:45
+0:23
Finish
26.22 mi14:54:293:35:118:138:16
8:07
-0:38

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

7:48 /mi

Average Pace

8:13 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:55:58

82% of race

Time at Steady Pace

39:13

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:12 /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 mi11:46:4727:298:5127:29
8:51
#19718
10K
6.21 mi12:11:5152:338:2725:04
8:04
#17610
15K
9.32 mi12:36:401:17:228:1824:49
7:59
#16518
20K
12.43 mi13:01:201:42:028:1324:40
7:56
#15646
Half
13.11 mi13:06:391:47:218:115:19
7:48
#15511
25K
15.53 mi13:25:592:06:418:0919:20
7:58
#15031
30K
18.64 mi13:51:392:32:218:1025:40
8:16
#14615
20M
20.00 mi14:02:552:43:378:1111:16
8:17
#14422
21M
21.00 mi14:11:382:52:208:128:43
8:43
#14265
35K
21.75 mi14:17:362:58:188:125:58
7:59
#14158
23M
23.00 mi14:27:523:08:348:1210:16
8:12
#13954
24M
24.00 mi14:36:033:16:458:128:11
8:11
#13869
40K
24.85 mi14:43:123:23:548:127:09
8:22
#13793
25.2M
25.20 mi14:46:133:26:558:133:01
8:45
#13743
Finish
26.22 mi14:54:293:35:118:138:16
8:07
#13685
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi197187642764214305(Top 54%)4262(Top 37%)4262(Top 87%)
10K6.21 mi3.10 mi17610+21086292+13506292+135015303(Top 57%)4852(Top 42%)4852(Top 99%)
15K9.32 mi3.11 mi16518+10925608+6845608+68414305(Top 54%)4262(Top 37%)4262(Top 87%)
20K12.43 mi3.11 mi15646+8725082+5265082+52612961(Top 49%)3530(Top 31%)3530(Top 72%)
Half13.11 mi0.68 mi15511+1355001+815001+8112762(Top 48%)3368(Top 29%)3368(Top 69%)
25K15.53 mi2.42 mi15031+4804729+2724729+27212556(Top 47%)3396(Top 30%)3396(Top 70%)
30K18.64 mi3.11 mi14615+4164507+2224507+22212776(Top 48%)3626(Top 32%)3626(Top 74%)
20M20.00 mi1.36 mi14422+1934431+764431+7612336(Top 46%)3487(Top 31%)3487(Top 71%)
21M21.00 mi1.00 mi14265+1574357+744357+7411802(Top 44%)3308(Top 29%)3308(Top 68%)
35K21.75 mi0.75 mi14158+1074304+534304+5312009(Top 45%)3445(Top 30%)3445(Top 71%)
23M23.00 mi1.25 mi13954+2044200+1044200+10411216(Top 42%)3128(Top 27%)3128(Top 64%)
24M24.00 mi1.00 mi13869+854178+224178+2212516(Top 47%)3871(Top 34%)3871(Top 79%)
40K24.85 mi0.85 mi13793+764140+384140+3812502(Top 47%)3943(Top 35%)3943(Top 81%)
25.2M25.20 mi0.35 mi13743+504119+214119+2111123(Top 42%)3281(Top 29%)3281(Top 67%)
Finish26.22 mi1.02 mi13685+584104+154104+1512878(Top 48%)4149(Top 36%)4149(Top 85%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

14305

Females

4262

F18-39

4262

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

15303

Females

4852

F18-39

4852

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

14305

Females

4262

F18-39

4262

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

12961

Females

3530

F18-39

3530

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

12762

Females

3368

F18-39

3368

Half→25K

13.1 - 15.5 mi

Top 47%
×4stories
+66ft-88ft

Overall

12556

Females

3396

F18-39

3396

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

12776

Females

3626

F18-39

3626

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12336

Females

3487

F18-39

3487

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

11802

Females

3308

F18-39

3308

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

12009

Females

3445

F18-39

3445

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

11216

Females

3128

F18-39

3128

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

12516

Females

3871

F18-39

3871

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12502

Females

3943

F18-39

3943

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11123

Females

3281

F18-39

3281

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

12878

Females

4149

F18-39

4149

Passing Analysis

Category:
Athletes Passed
6234
Passed By
201
Net Change
+6033
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19718
5K → 10K212012+2108#19718#17610
10K → 15K110412+1092#17610#16518
15K → 20K8775+872#16518#15646
20K → Half1350+135#15646#15511
Half → 25K4844+480#15511#15031
25K → 30K43721+416#15031#14615
30K → 20M20411+193#14615#14422
20M → 21M17114+157#14422#14265
21M → 35K1114+107#14265#14158
35K → 23M22218+204#14158#13954
23M → 24M10520+85#13954#13869
24M → 40K10630+76#13869#13793
40K → 25.2M588+50#13793#13743
25.2M → Finish10042+58#13743#13685
TOTALS6234201+6033
📊

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