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BOSTON MARATHON 2023

Liz Chamiec-Case

CA

Bib: 12691 F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 28%
Gender (Female)
#0 / 11423
Top 9%
Division (F18-39)
#0 / 4884
Top 17%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:14/mi
22:27
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:15/mi
44:57
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:14/mi
1:07:25
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:15/mi
1:29:58
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:14/mi
1:34:54
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:16/mi
1:52:31
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:30/mi
2:15:49
↑ 181↓ 1480.2%
138 ft elev
20M
7:37/mi
2:26:10
↑ 64↓ 500.2%
148 ft elev
21M
7:57/mi
2:34:07
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:24/mi
2:39:39
↑ 17↓ 861.7%
156 ft elev
23M
7:41/mi
2:49:16
↑ 23↓ 630.6%
116 ft elev
24M
7:34/mi
2:56:50
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:40/mi
3:03:23
↓ 200.3%
20 ft elev
25.2M
8:01/mi
3:06:09
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:25/mi
3:13:42
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:54
Pace7:14 /mi
2nd Half
Distance13.11 mi
Time1:38:48
Pace7:32 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5422:277:1422:27
7:14
-
10K
6.21 mi11:12:2444:577:1422:30
7:15
+0:01
15K
9.32 mi11:34:521:07:257:1422:28
7:14
-0:01
20K
12.43 mi11:57:251:29:587:1422:33
7:15
+0:01
Half
13.11 mi12:02:211:34:547:144:56
7:14
-0:01
25K
15.53 mi12:19:581:52:317:1517:37
7:16
+0:02
30K
18.64 mi12:43:162:15:497:1723:18
7:30
+0:14
20M
20.00 mi12:53:372:26:107:1810:21
7:37
+0:07
21M
21.00 mi13:01:342:34:077:207:57
7:57
+0:20
35K
21.75 mi13:07:062:39:397:205:32
7:24
-0:33
23M
23.00 mi13:16:432:49:167:229:37
7:41
+0:17
24M
24.00 mi13:24:172:56:507:227:34
7:34
-0:07
40K
24.85 mi13:30:503:03:237:236:33
7:40
+0:06
25.2M
25.20 mi13:33:363:06:097:232:46
8:01
+0:21
Finish
26.22 mi13:41:093:13:427:247:33
7:25
-0:36

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

7:14 /mi

Average Pace

7:24 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:56

99% of race

Time at Steady Pace

2:46

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:23 /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 mi10:49:5422:277:1422:27
7:14
#7668
10K
6.21 mi11:12:2444:577:1422:30
7:15
#7991
15K
9.32 mi11:34:521:07:257:1422:28
7:14
#8004
20K
12.43 mi11:57:251:29:587:1422:33
7:15
#7829
Half
13.11 mi12:02:211:34:547:144:56
7:14
#7833
25K
15.53 mi12:19:581:52:317:1517:37
7:16
#7682
30K
18.64 mi12:43:162:15:497:1723:18
7:30
#7540
20M
20.00 mi12:53:372:26:107:1810:21
7:37
#7499
21M
21.00 mi13:01:342:34:077:207:57
7:57
#7451
35K
21.75 mi13:07:062:39:397:205:32
7:24
#7453
23M
23.00 mi13:16:432:49:167:229:37
7:41
#7402
24M
24.00 mi13:24:172:56:507:227:34
7:34
#7396
40K
24.85 mi13:30:503:03:237:236:33
7:40
#7387
25.2M
25.20 mi13:33:363:06:097:232:46
8:01
#7369
Finish
26.22 mi13:41:093:13:427:247:33
7:25
#7357
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi76688998998027(Top 30%)1077(Top 9%)1077(Top 22%)
10K6.21 mi3.10 mi7991-3231021-1221021-1228427(Top 32%)1200(Top 11%)1200(Top 25%)
15K9.32 mi3.11 mi8004-131037-161037-168027(Top 30%)1077(Top 9%)1077(Top 22%)
20K12.43 mi3.11 mi7829+175995+42995+427505(Top 28%)933(Top 8%)933(Top 19%)
Half13.11 mi0.68 mi7833-4994+1994+18137(Top 31%)1143(Top 10%)1143(Top 23%)
25K15.53 mi2.42 mi7682+151959+35959+357085(Top 27%)867(Top 8%)867(Top 18%)
30K18.64 mi3.11 mi7540+142949+10949+107220(Top 27%)1003(Top 9%)1003(Top 21%)
20M20.00 mi1.36 mi7499+41959-10959-107613(Top 29%)1256(Top 11%)1256(Top 26%)
21M21.00 mi1.00 mi7451+48958+1958+17058(Top 27%)1153(Top 10%)1153(Top 24%)
35K21.75 mi0.75 mi7453-2975-17975-177801(Top 29%)1409(Top 12%)1409(Top 29%)
23M23.00 mi1.25 mi7402+51976-1976-17634(Top 29%)1422(Top 12%)1422(Top 29%)
24M24.00 mi1.00 mi7396+6988-12988-128177(Top 31%)1742(Top 15%)1742(Top 36%)
40K24.85 mi0.85 mi7387+91013-251013-257731(Top 29%)1638(Top 14%)1638(Top 34%)
25.2M25.20 mi0.35 mi7369+181018-51018-56704(Top 25%)1290(Top 11%)1290(Top 26%)
Finish26.22 mi1.02 mi7357+121030-121030-127869(Top 30%)1768(Top 15%)1768(Top 36%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

8027

Females

1077

F18-39

1077

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8427

Females

1200

F18-39

1200

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

8027

Females

1077

F18-39

1077

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7505

Females

933

F18-39

933

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8137

Females

1143

F18-39

1143

Half→25K

13.1 - 15.5 mi

Top 27%
×4story building
+66ft-88ft

Overall

7085

Females

867

F18-39

867

25K→30K

15.5 - 18.6 mi

Top 27%
×9story building
+181ft-148ft

Overall

7220

Females

1003

F18-39

1003

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

7613

Females

1256

F18-39

1256

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7058

Females

1153

F18-39

1153

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7801

Females

1409

F18-39

1409

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7634

Females

1422

F18-39

1422

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8177

Females

1742

F18-39

1742

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7731

Females

1638

F18-39

1638

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6704

Females

1290

F18-39

1290

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

7869

Females

1768

F18-39

1768

Passing Analysis

Category:
Athletes Passed
1384
Passed By
1073
Net Change
+311
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7668
5K → 10K104427-323#7668#7991
10K → 15K129142-13#7991#8004
15K → 20K20833+175#8004#7829
20K → Half2226-4#7829#7833
Half → 25K17827+151#7833#7682
25K → 30K20462+142#7682#7540
30K → 20M9150+41#7540#7499
20M → 21M8840+48#7499#7451
21M → 35K3840-2#7451#7453
35K → 23M9443+51#7453#7402
23M → 24M5751+6#7402#7396
24M → 40K6051+9#7396#7387
40K → 25.2M3618+18#7387#7369
25.2M → Finish7563+12#7369#7357
TOTALS13841073+311
📊

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