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BOSTON MARATHON 2023

Leandra Zimmermann

Bib: 2958•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
Gender (Female)
#0 / 11423
Top 0.5%
Division (F18-39)
#0 / 4884
Top 1.0%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:28
Rank: #1328
Start → 5K
19:28 | 6:16/mi
10K· 6.21 mi
38:33
Rank: #1218 (+110)
5K → 10K
19:05 | 6:09/mi
15K· 9.32 mi
57:45
Rank: #1186 (+32)
10K → 15K
19:12 | 6:11/mi
20K· 12.43 mi
1:17:25
Rank: #1236 (-50)
15K → 20K
19:40 | 6:20/mi
Half· 13.11 mi
1:21:40
Rank: #1245 (-9)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:37:02
Rank: #1281 (-36)
Half → 25K
15:22 | 6:20/mi
30K· 18.64 mi
1:57:17
Rank: #1312 (-31)
25K → 30K
20:15 | 6:31/mi
20M
2:06:06
Rank: #1315 (-3)
30K → 20M
8:49 | 6:29/mi
21M
2:12:54
Rank: #1309 (+6)
20M → 21M
6:48 | 6:48/mi
35K· 21.75 mi
2:17:25
Rank: #1261 (+48)
21M → 35K
4:31 | 6:02/mi
23M
2:25:15
Rank: #1197 (+64)
35K → 23M
7:50 | 6:15/mi
24M
2:31:13
Rank: #1147 (+50)
23M → 24M
5:58 | 5:58/mi
40K· 24.85 mi
2:36:34
Rank: #1125 (+22)
24M → 40K
5:21 | 6:15/mi
25.2M
2:38:52
Rank: #1113 (+12)
40K → 25.2M
2:18 | 6:40/mi
Finish· 26.22 mi
2:45:04
Rank: #1090 (+23)
25.2M → Finish
6:12 | 6:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:40
Pace6:14 /mi
2nd Half
Distance13.11 mi
Time1:23:24
Pace6:22 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:3019:286:1619:28
6:16
-
10K
6.21 mi10:39:3538:336:1219:05
6:09
-0:07
15K
9.32 mi10:58:4757:456:1219:12
6:11
+0:02
20K
12.43 mi11:18:271:17:256:1419:40
6:20
+0:09
Half
13.11 mi11:22:421:21:406:144:15
6:14
-0:06
25K
15.53 mi11:38:041:37:026:1515:22
6:20
+0:06
30K
18.64 mi11:58:191:57:176:1720:15
6:31
+0:11
20M
20.00 mi12:07:082:06:066:188:49
6:29
-0:02
21M
21.00 mi12:13:562:12:546:206:48
6:48
+0:19
35K
21.75 mi12:18:272:17:256:194:31
6:02
-0:46
23M
23.00 mi12:26:172:25:156:197:50
6:15
+0:13
24M
24.00 mi12:32:152:31:136:185:58
5:58
-0:17
40K
24.85 mi12:37:362:36:346:185:21
6:15
+0:17
25.2M
25.20 mi12:39:542:38:526:182:18
6:40
+0:25
Finish
26.22 mi12:46:062:45:046:186:12
6:05
-0:35

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

5:58 /mi

Average Pace

6:18 /mi

Slowest Pace

6:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:58

94% of race

Time at Steady Pace

9:06

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:18 /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 mi10:20:3019:286:1619:28
6:16
#1328
10K
6.21 mi10:39:3538:336:1219:05
6:09
#1218
15K
9.32 mi10:58:4757:456:1219:12
6:11
#1186
20K
12.43 mi11:18:271:17:256:1419:40
6:20
#1236
Half
13.11 mi11:22:421:21:406:144:15
6:14
#1245
25K
15.53 mi11:38:041:37:026:1515:22
6:20
#1281
30K
18.64 mi11:58:191:57:176:1720:15
6:31
#1312
20M
20.00 mi12:07:082:06:066:188:49
6:29
#1315
21M
21.00 mi12:13:562:12:546:206:48
6:48
#1309
35K
21.75 mi12:18:272:17:256:194:31
6:02
#1261
23M
23.00 mi12:26:172:25:156:197:50
6:15
#1197
24M
24.00 mi12:32:152:31:136:185:58
5:58
#1147
40K
24.85 mi12:37:362:36:346:185:21
6:15
#1125
25.2M
25.20 mi12:39:542:38:526:182:18
6:40
#1113
Finish
26.22 mi12:46:062:45:046:186:12
6:05
#1090
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi132865651188(Top 4%)55(Top 0.5%)55(Top 1%)
10K6.21 mi3.10 mi1218+11062+362+31157(Top 4%)59(Top 0.5%)59(Top 1%)
15K9.32 mi3.11 mi1186+3260+260+21188(Top 4%)55(Top 0.5%)55(Top 1%)
20K12.43 mi3.11 mi1236-5058+258+21531(Top 6%)67(Top 0.6%)67(Top 1%)
Half13.11 mi0.68 mi1245-958581541(Top 6%)63(Top 0.6%)63(Top 1%)
25K15.53 mi2.42 mi1281-3657+157+11482(Top 6%)62(Top 0.5%)62(Top 1%)
30K18.64 mi3.11 mi1312-3158-158-11639(Top 6%)71(Top 0.6%)71(Top 1%)
20M20.00 mi1.36 mi1315-358581424(Top 5%)67(Top 0.6%)67(Top 1%)
21M21.00 mi1.00 mi1309+659-159-11428(Top 5%)65(Top 0.6%)65(Top 1%)
35K21.75 mi0.75 mi1261+4856+356+3796(Top 3%)43(Top 0.4%)43(Top 0.9%)
23M23.00 mi1.25 mi1197+6453+353+3744(Top 3%)41(Top 0.4%)41(Top 0.8%)
24M24.00 mi1.00 mi1147+505353497(Top 2%)29(Top 0.3%)29(Top 0.6%)
40K24.85 mi0.85 mi1125+2252+152+1804(Top 3%)42(Top 0.4%)42(Top 0.9%)
25.2M25.20 mi0.35 mi1113+125252876(Top 3%)42(Top 0.4%)42(Top 0.9%)
Finish26.22 mi1.02 mi1090+235252957(Top 4%)43(Top 0.4%)43(Top 0.9%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1188

Females

55

F18-39

55

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1157

Females

59

F18-39

59

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1188

Females

55

F18-39

55

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1531

Females

67

F18-39

67

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1541

Females

63

F18-39

63

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1482

Females

62

F18-39

62

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1639

Females

71

F18-39

71

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1424

Females

67

F18-39

67

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1428

Females

65

F18-39

65

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

796

Females

43

F18-39

43

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

744

Females

41

F18-39

41

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

497

Females

29

F18-39

29

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

804

Females

42

F18-39

42

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

876

Females

42

F18-39

42

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

957

Females

43

F18-39

43

Passing Analysis

Category:
Athletes Passed
551
Passed By
313
Net Change
+238
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1328
5K → 10K14333+110#1328#1218
10K → 15K5321+32#1218#1186
15K → 20K2474-50#1186#1236
20K → Half110-9#1236#1245
Half → 25K1450-36#1245#1281
25K → 30K3667-31#1281#1312
30K → 20M1922-3#1312#1315
20M → 21M2822+6#1315#1309
21M → 35K480+48#1309#1261
35K → 23M662+64#1261#1197
23M → 24M500+50#1197#1147
24M → 40K253+22#1147#1125
40K → 25.2M153+12#1125#1113
25.2M → Finish296+23#1113#1090
TOTALS551313+238
📊

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