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BOSTON MARATHON 2023

Catherine Poo

Bib: 17085•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 43%
Division (F18-39)
#0 / 4884
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
8:09/mi
25:18
↑ 97↓ 3451.5%
10K· 6.21 mi
7:46/mi
49:26
↑ 79↓ 1380.4%
15K· 9.32 mi
7:49/mi
1:13:43
↑ 67↓ 78
20K· 12.43 mi
8:44/mi
1:40:50
↑ 106↓ 860.1%
Half· 13.11 mi
7:50/mi
1:46:11
↑ 19↓ 370.5%
25K· 15.53 mi
7:53/mi
2:05:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:20/mi
2:31:10
↑ 181↓ 1480.2%
20M
8:32/mi
2:42:46
↑ 64↓ 500.2%
21M
9:28/mi
2:52:14
↑ 106↓ 241.6%
35K· 21.75 mi
8:07/mi
2:58:18
↑ 17↓ 861.7%
23M
8:58/mi
3:09:32
↑ 23↓ 630.6%
24M
9:40/mi
3:19:12
↓ 821.3%
40K· 24.85 mi
9:53/mi
3:27:39
↓ 200.3%
25.2M
11:13/mi
3:31:31
↑ 13↓ 160.2%
Finish· 26.22 mi
8:57/mi
3:40:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:11
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time1:54:27
Pace8:44 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0825:188:0925:18
8:09
-
10K
6.21 mi11:40:1649:267:5724:08
7:46
-0:23
15K
9.32 mi12:04:331:13:437:5524:17
7:49
+0:03
20K
12.43 mi12:31:401:40:508:0727:07
8:44
+0:55
Half
13.11 mi12:37:011:46:118:065:21
7:50
-0:54
25K
15.53 mi12:56:072:05:178:0419:06
7:53
+0:03
30K
18.64 mi13:22:002:31:108:0725:53
8:20
+0:27
20M
20.00 mi13:33:362:42:468:0811:36
8:32
+0:12
21M
21.00 mi13:43:042:52:148:129:28
9:28
+0:56
35K
21.75 mi13:49:082:58:188:126:04
8:07
-1:21
23M
23.00 mi14:00:223:09:328:1411:14
8:58
+0:51
24M
24.00 mi14:10:023:19:128:189:40
9:40
+0:42
40K
24.85 mi14:18:293:27:398:218:27
9:53
+0:13
25.2M
25.20 mi14:22:213:31:318:243:52
11:13
+1:20
Finish
26.22 mi14:31:283:40:388:259:07
8:57
-2:16

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

7:46 /mi

Average Pace

8:25 /mi

Slowest Pace

11:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:12:52

33% of race

Time at Steady Pace

1:56:19

53% of race

Time at Slower Pace

31:27

14% of race

Average Pace: 8:25 /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 mi11:16:0825:188:0925:18
8:09
#15027
10K
6.21 mi11:40:1649:267:5724:08
7:46
#14034
15K
9.32 mi12:04:331:13:437:5524:17
7:49
#13643
20K
12.43 mi12:31:401:40:508:0727:07
8:44
#14971
Half
13.11 mi12:37:011:46:118:065:21
7:50
#14878
25K
15.53 mi12:56:072:05:178:0419:06
7:53
#14377
30K
18.64 mi13:22:002:31:108:0725:53
8:20
#14171
20M
20.00 mi13:33:362:42:468:0811:36
8:32
#14144
21M
21.00 mi13:43:042:52:148:129:28
9:28
#14226
35K
21.75 mi13:49:082:58:188:126:04
8:07
#14157
23M
23.00 mi14:00:223:09:328:1411:14
8:58
#14256
24M
24.00 mi14:10:023:19:128:189:40
9:40
#14576
40K
24.85 mi14:18:293:27:398:218:27
9:53
#14813
25.2M
25.20 mi14:22:213:31:318:243:52
11:13
#14962
Finish
26.22 mi14:31:283:40:388:259:07
8:57
#15091
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi150274652465212869(Top 48%)3387(Top 30%)3387(Top 69%)
10K6.21 mi3.10 mi14034+9934059+5934059+59312845(Top 48%)3334(Top 29%)3334(Top 68%)
15K9.32 mi3.11 mi13643+3913844+2153844+21512869(Top 48%)3387(Top 30%)3387(Top 69%)
20K12.43 mi3.11 mi14971-13284664-8204664-82018289(Top 69%)6662(Top 58%)6662(Top 136%)
Half13.11 mi0.68 mi14878+934609+554609+5513093(Top 49%)3527(Top 31%)3527(Top 72%)
25K15.53 mi2.42 mi14377+5014331+2784331+27811737(Top 44%)2911(Top 25%)2911(Top 60%)
30K18.64 mi3.11 mi14171+2064243+884243+8813219(Top 50%)3872(Top 34%)3872(Top 79%)
20M20.00 mi1.36 mi14144+274255-124255-1213849(Top 52%)4318(Top 38%)4318(Top 88%)
21M21.00 mi1.00 mi14226-824327-724327-7215805(Top 59%)5508(Top 48%)5508(Top 113%)
35K21.75 mi0.75 mi14157+694303+244303+2412843(Top 48%)3896(Top 34%)3896(Top 80%)
23M23.00 mi1.25 mi14256-994385-824385-8215906(Top 60%)5676(Top 50%)5676(Top 116%)
24M24.00 mi1.00 mi14576-3204596-2114596-21119774(Top 74%)7845(Top 69%)7845(Top 161%)
40K24.85 mi0.85 mi14813-2374769-1734769-17319643(Top 74%)7852(Top 69%)7852(Top 161%)
25.2M25.20 mi0.35 mi14962-1494864-954864-9520940(Top 79%)8546(Top 75%)8546(Top 175%)
Finish26.22 mi1.02 mi15091-1294962-984962-9817705(Top 67%)6749(Top 59%)6749(Top 138%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

12869

Females

3387

F18-39

3387

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

12845

Females

3334

F18-39

3334

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

12869

Females

3387

F18-39

3387

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

18289

Females

6662

F18-39

6662

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13093

Females

3527

F18-39

3527

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

11737

Females

2911

F18-39

2911

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

13219

Females

3872

F18-39

3872

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

13849

Females

4318

F18-39

4318

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15805

Females

5508

F18-39

5508

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

12843

Females

3896

F18-39

3896

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

15906

Females

5676

F18-39

5676

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

19774

Females

7845

F18-39

7845

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19643

Females

7852

F18-39

7852

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

20940

Females

8546

F18-39

8546

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

17705

Females

6749

F18-39

6749

Passing Analysis

Category:
Athletes Passed
2787
Passed By
2851
Net Change
-64
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15027
5K → 10K105461+993#15027#14034
10K → 15K44958+391#14034#13643
15K → 20K251353-1328#13643#14971
20K → Half996+93#14971#14878
Half → 25K5043+501#14878#14377
25K → 30K28781+206#14377#14171
30K → 20M9669+27#14171#14144
20M → 21M55137-82#14144#14226
21M → 35K8415+69#14226#14157
35K → 23M61160-99#14157#14256
23M → 24M21341-320#14256#14576
24M → 40K19256-237#14576#14813
40K → 25.2M9158-149#14813#14962
25.2M → Finish24153-129#14962#15091
TOTALS27872851-64
📊

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