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BOSTON MARATHON 2023

Erica Zenke

Bib: 19184•F

MN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 34%
Masters (Masters Women)
#0 / 6539
Top 21%
Division (F40-44)
#0 / 1878
Top 39%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:25/mi
26:08
↑ 97↓ 3451.5%
10K· 6.21 mi
8:08/mi
51:25
↑ 79↓ 1380.4%
15K· 9.32 mi
8:09/mi
1:16:43
↑ 67↓ 78
20K· 12.43 mi
8:08/mi
1:41:58
↑ 106↓ 860.1%
Half· 13.11 mi
8:01/mi
1:47:26
↑ 19↓ 370.5%
25K· 15.53 mi
8:03/mi
2:06:56
↑ 66↓ 880.2%
30K· 18.64 mi
8:09/mi
2:32:15
↑ 181↓ 1480.2%
20M
8:14/mi
2:43:26
↑ 64↓ 500.2%
21M
8:29/mi
2:51:55
↑ 106↓ 241.6%
35K· 21.75 mi
7:56/mi
2:57:51
↑ 17↓ 861.7%
23M
8:16/mi
3:08:12
↑ 23↓ 630.6%
24M
7:56/mi
3:16:08
↓ 821.3%
40K· 24.85 mi
8:11/mi
3:23:08
↓ 200.3%
25.2M
8:42/mi
3:26:08
↑ 13↓ 160.2%
Finish· 26.22 mi
7:55/mi
3:34:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:47:26
Pace8:12 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:46:46
Pace8:09 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:4926:088:2526:08
8:25
-
10K
6.21 mi11:43:0651:258:1625:17
8:08
-0:17
15K
9.32 mi12:08:241:16:438:1425:18
8:09
+0:01
20K
12.43 mi12:33:391:41:588:1225:15
8:08
-0:01
Half
13.11 mi12:39:071:47:268:125:28
8:01
-0:07
25K
15.53 mi12:58:372:06:568:1019:30
8:03
+0:02
30K
18.64 mi13:23:562:32:158:1025:19
8:09
+0:06
20M
20.00 mi13:35:072:43:268:1011:11
8:14
+0:05
21M
21.00 mi13:43:362:51:558:118:29
8:29
+0:15
35K
21.75 mi13:49:322:57:518:115:56
7:56
-0:33
23M
23.00 mi13:59:533:08:128:1110:21
8:16
+0:20
24M
24.00 mi14:07:493:16:088:107:56
7:56
-0:20
40K
24.85 mi14:14:493:23:088:107:00
8:11
+0:15
25.2M
25.20 mi14:17:493:26:088:113:00
8:42
+0:31
Finish
26.22 mi14:25:533:34:128:118:04
7:55
-0:47

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

7:55 /mi

Average Pace

8:11 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:35

82% of race

Time at Steady Pace

37:37

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:10 /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 mi11:17:4926:088:2526:08
8:25
#16965
10K
6.21 mi11:43:0651:258:1625:17
8:08
#16324
15K
9.32 mi12:08:241:16:438:1425:18
8:09
#16046
20K
12.43 mi12:33:391:41:588:1225:15
8:08
#15611
Half
13.11 mi12:39:071:47:268:125:28
8:01
#15543
25K
15.53 mi12:58:372:06:568:1019:30
8:03
#15139
30K
18.64 mi13:23:562:32:158:1025:19
8:09
#14577
20M
20.00 mi13:35:072:43:268:1011:11
8:14
#14343
21M
21.00 mi13:43:362:51:558:118:29
8:29
#14114
35K
21.75 mi13:49:322:57:518:115:56
7:56
#14000
23M
23.00 mi13:59:533:08:128:1110:21
8:16
#13827
24M
24.00 mi14:07:493:16:088:107:56
7:56
#13673
40K
24.85 mi14:14:493:23:088:107:00
8:11
#13560
25.2M
25.20 mi14:17:493:26:088:113:00
8:42
#13498
Finish
26.22 mi14:25:533:34:128:118:04
7:55
#13400
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi169655904590415452(Top 58%)4946(Top 43%)4946(Top 263%)
10K6.21 mi3.10 mi16324+6415473+4315473+43115796(Top 59%)5138(Top 45%)5138(Top 274%)
15K9.32 mi3.11 mi16046+2785312+1615312+16115452(Top 58%)4946(Top 43%)4946(Top 263%)
20K12.43 mi3.11 mi15611+4355064+2485064+24814415(Top 54%)4351(Top 38%)4351(Top 232%)
Half13.11 mi0.68 mi15543+685022+425022+4214506(Top 54%)4375(Top 38%)4375(Top 233%)
25K15.53 mi2.42 mi15139+4044793+2294793+22913108(Top 49%)3692(Top 32%)3692(Top 197%)
30K18.64 mi3.11 mi14577+5624486+3074486+30712003(Top 45%)3190(Top 28%)3190(Top 170%)
20M20.00 mi1.36 mi14343+2344387+994387+9911921(Top 45%)3237(Top 28%)3237(Top 172%)
21M21.00 mi1.00 mi14114+2294261+1264261+12610433(Top 39%)2604(Top 23%)2604(Top 139%)
35K21.75 mi0.75 mi14000+1144198+634198+6311675(Top 44%)3254(Top 28%)3254(Top 173%)
23M23.00 mi1.25 mi13827+1734117+814117+8111675(Top 44%)3349(Top 29%)3349(Top 178%)
24M24.00 mi1.00 mi13673+1544046+714046+7110824(Top 41%)3003(Top 26%)3003(Top 160%)
40K24.85 mi0.85 mi13560+1133995+513995+5111315(Top 43%)3324(Top 29%)3324(Top 177%)
25.2M25.20 mi0.35 mi13498+623969+263969+2610841(Top 41%)3115(Top 27%)3115(Top 166%)
Finish26.22 mi1.02 mi13400+983934+353934+3511539(Top 43%)3469(Top 30%)3469(Top 185%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

15452

Females

4946

F40-44

4946

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

15796

Females

5138

F40-44

5138

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

15452

Females

4946

F40-44

4946

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

14415

Females

4351

F40-44

4351

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

14506

Females

4375

F40-44

4375

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13108

Females

3692

F40-44

3692

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

12003

Females

3190

F40-44

3190

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

11921

Females

3237

F40-44

3237

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

10433

Females

2604

F40-44

2604

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

11675

Females

3254

F40-44

3254

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

11675

Females

3349

F40-44

3349

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

10824

Females

3003

F40-44

3003

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11315

Females

3324

F40-44

3324

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10841

Females

3115

F40-44

3115

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

11539

Females

3469

F40-44

3469

Passing Analysis

Category:
Athletes Passed
3885
Passed By
320
Net Change
+3565
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16965
5K → 10K73291+641#16965#16324
10K → 15K36183+278#16324#16046
15K → 20K45722+435#16046#15611
20K → Half779+68#15611#15543
Half → 25K4139+404#15543#15139
25K → 30K5708+562#15139#14577
30K → 20M24511+234#14577#14343
20M → 21M2389+229#14343#14114
21M → 35K1184+114#14114#14000
35K → 23M18815+173#14000#13827
23M → 24M1606+154#13827#13673
24M → 40K13219+113#13673#13560
40K → 25.2M686+62#13560#13498
25.2M → Finish12628+98#13498#13400
TOTALS3885320+3565
📊

Passing Visuals

Category:
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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