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BOSTON MARATHON 2023

Mackenzie Rosenberg

Bib: 25983•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
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
31:18
Rank: #23612
Start → 5K
31:18 | 10:04/mi
10K· 6.21 mi
1:00:17
Rank: #22907 (+705)
5K → 10K
28:59 | 9:20/mi
15K· 9.32 mi
1:28:22
Rank: #22241 (+666)
10K → 15K
28:05 | 9:02/mi
20K· 12.43 mi
1:56:29
Rank: #21725 (+516)
15K → 20K
28:07 | 9:03/mi
Half· 13.11 mi
2:02:32
Rank: #21655 (+70)
20K → Half
6:03 | 8:52/mi
25K· 15.53 mi
2:24:15
Rank: #21239 (+416)
Half → 25K
21:43 | 8:57/mi
30K· 18.64 mi
2:52:07
Rank: #20581 (+658)
25K → 30K
27:52 | 8:58/mi
20M
3:04:28
Rank: #20341 (+240)
30K → 20M
12:21 | 9:05/mi
21M
3:13:55
Rank: #20098 (+243)
20M → 21M
9:27 | 9:27/mi
35K· 21.75 mi
3:20:37
Rank: #20001 (+97)
21M → 35K
6:42 | 8:57/mi
23M
3:32:00
Rank: #19797 (+204)
35K → 23M
11:23 | 9:05/mi
24M
3:40:52
Rank: #19673 (+124)
23M → 24M
8:52 | 8:52/mi
40K· 24.85 mi
3:48:54
Rank: #19617 (+56)
24M → 40K
8:02 | 9:24/mi
25.2M
3:52:25
Rank: #19593 (+24)
40K → 25.2M
3:31 | 10:12/mi
Finish· 26.22 mi
4:01:51
Rank: #19585 (+8)
25.2M → Finish
9:26 | 9:15/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:02:32
Pace9:21 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:59:19
Pace9:06 /mi
📊Negative Split: 2.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:1931:1810:0431:18
10:04
-
10K
6.21 mi12:21:181:00:179:4228:59
9:20
-0:44
15K
9.32 mi12:49:231:28:229:2928:05
9:02
-0:18
20K
12.43 mi13:17:301:56:299:2228:07
9:03
+0:01
Half
13.11 mi13:23:332:02:329:216:03
8:52
-0:11
25K
15.53 mi13:45:162:24:159:1721:43
8:57
+0:05
30K
18.64 mi14:13:082:52:079:1427:52
8:58
+0:01
20M
20.00 mi14:25:293:04:289:1312:21
9:05
+0:07
21M
21.00 mi14:34:563:13:559:149:27
9:27
+0:22
35K
21.75 mi14:41:383:20:379:136:42
8:57
-0:30
23M
23.00 mi14:53:013:32:009:1311:23
9:05
+0:08
24M
24.00 mi15:01:533:40:529:128:52
8:52
-0:13
40K
24.85 mi15:09:553:48:549:138:02
9:24
+0:32
25.2M
25.20 mi15:13:263:52:259:133:31
10:12
+0:48
Finish
26.22 mi15:22:524:01:519:149:26
9:15
-0:57

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

8:52 /mi

Average Pace

9:14 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:27:02

86% of race

Time at Steady Pace

34:49

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:13 /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 mi11:52:1931:1810:0431:18
10:04
#23612
10K
6.21 mi12:21:181:00:179:4228:59
9:20
#22907
15K
9.32 mi12:49:231:28:229:2928:05
9:02
#22241
20K
12.43 mi13:17:301:56:299:2228:07
9:03
#21725
Half
13.11 mi13:23:332:02:329:216:03
8:52
#21655
25K
15.53 mi13:45:162:24:159:1721:43
8:57
#21239
30K
18.64 mi14:13:082:52:079:1427:52
8:58
#20581
20M
20.00 mi14:25:293:04:289:1312:21
9:05
#20341
21M
21.00 mi14:34:563:13:559:149:27
9:27
#20098
35K
21.75 mi14:41:383:20:379:136:42
8:57
#20001
23M
23.00 mi14:53:013:32:009:1311:23
9:05
#19797
24M
24.00 mi15:01:533:40:529:128:52
8:52
#19673
40K
24.85 mi15:09:553:48:549:138:02
9:24
#19617
25.2M
25.20 mi15:13:263:52:259:133:31
10:12
#19593
Finish
26.22 mi15:22:524:01:519:149:26
9:15
#19585
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi236129705970520680(Top 78%)8056(Top 71%)8056(Top 165%)
10K6.21 mi3.10 mi22907+7059307+3989307+39822019(Top 83%)8827(Top 77%)8827(Top 181%)
15K9.32 mi3.11 mi22241+6668960+3478960+34720680(Top 78%)8056(Top 71%)8056(Top 165%)
20K12.43 mi3.11 mi21725+5168669+2918669+29119936(Top 75%)7640(Top 67%)7640(Top 156%)
Half13.11 mi0.68 mi21655+708640+298640+2919872(Top 75%)7597(Top 67%)7597(Top 156%)
25K15.53 mi2.42 mi21239+4168402+2388402+23818766(Top 70%)7003(Top 61%)7003(Top 143%)
30K18.64 mi3.11 mi20581+6588053+3498053+34917018(Top 64%)6076(Top 53%)6076(Top 124%)
20M20.00 mi1.36 mi20341+2407936+1177936+11717019(Top 64%)6179(Top 54%)6179(Top 127%)
21M21.00 mi1.00 mi20098+2437806+1307806+13015770(Top 59%)5505(Top 48%)5505(Top 113%)
35K21.75 mi0.75 mi20001+977752+547752+5417766(Top 67%)6714(Top 59%)6714(Top 137%)
23M23.00 mi1.25 mi19797+2047645+1077645+10716528(Top 62%)6046(Top 53%)6046(Top 124%)
24M24.00 mi1.00 mi19673+1247578+677578+6716636(Top 62%)6166(Top 54%)6166(Top 126%)
40K24.85 mi0.85 mi19617+567557+217557+2117967(Top 67%)6939(Top 61%)6939(Top 142%)
25.2M25.20 mi0.35 mi19593+247551+67551+618164(Top 68%)7044(Top 62%)7044(Top 144%)
Finish26.22 mi1.02 mi19585+87553-27553-219202(Top 72%)7556(Top 66%)7556(Top 155%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

20680

Females

8056

F18-39

8056

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

22019

Females

8827

F18-39

8827

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

20680

Females

8056

F18-39

8056

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

19936

Females

7640

F18-39

7640

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

19872

Females

7597

F18-39

7597

Half→25K

13.1 - 15.5 mi

Top 70%
×4stories
+66ft-88ft

Overall

18766

Females

7003

F18-39

7003

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

17018

Females

6076

F18-39

6076

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

17019

Females

6179

F18-39

6179

20M→21M

20.0 - 21.0 mi

Top 59%
×8stories
+106ft-24ft

Overall

15770

Females

5505

F18-39

5505

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

17766

Females

6714

F18-39

6714

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

16528

Females

6046

F18-39

6046

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

16636

Females

6166

F18-39

6166

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17967

Females

6939

F18-39

6939

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18164

Females

7044

F18-39

7044

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

19202

Females

7556

F18-39

7556

Passing Analysis

Category:
Athletes Passed
4173
Passed By
146
Net Change
+4027
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23612
5K → 10K73530+705#23612#22907
10K → 15K6726+666#22907#22241
15K → 20K5215+516#22241#21725
20K → Half722+70#21725#21655
Half → 25K4182+416#21655#21239
25K → 30K6624+658#21239#20581
30K → 20M2444+240#20581#20341
20M → 21M2452+243#20341#20098
21M → 35K1058+97#20098#20001
35K → 23M2095+204#20001#19797
23M → 24M1306+124#19797#19673
24M → 40K7620+56#19673#19617
40K → 25.2M3713+24#19617#19593
25.2M → Finish4739+8#19593#19585
TOTALS4173146+4027
📊

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