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BOSTON MARATHON 2023

Olivia Henry

Bib: 15463•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 35%
Gender (Female)
#0 / 11423
Top 16%
Division (F18-39)
#0 / 4884
Top 29%
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
7:53/mi
24:30
↑ 97↓ 3451.5%
10K· 6.21 mi
7:48/mi
48:44
↑ 79↓ 1380.4%
15K· 9.32 mi
7:42/mi
1:12:38
↑ 67↓ 78
20K· 12.43 mi
7:42/mi
1:36:34
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:41:44
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
2:00:11
↑ 66↓ 880.2%
30K· 18.64 mi
7:42/mi
2:24:05
↑ 181↓ 1480.2%
20M
7:49/mi
2:34:43
↑ 64↓ 500.2%
21M
8:21/mi
2:43:04
↑ 106↓ 241.6%
35K· 21.75 mi
7:29/mi
2:48:40
↑ 17↓ 861.7%
23M
7:31/mi
2:58:05
↑ 23↓ 630.6%
24M
7:10/mi
3:05:15
↓ 821.3%
40K· 24.85 mi
6:59/mi
3:11:13
↓ 200.3%
25.2M
7:35/mi
3:13:50
↑ 13↓ 160.2%
Finish· 26.22 mi
6:49/mi
3:20:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:41:44
Pace7:46 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:39:03
Pace7:33 /mi
📊Negative Split: 2.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:0924:307:5324:30
7:53
-
10K
6.21 mi11:44:2348:447:5124:14
7:48
-0:05
15K
9.32 mi12:08:171:12:387:4823:54
7:42
-0:06
20K
12.43 mi12:32:131:36:347:4623:56
7:42
0:00
Half
13.11 mi12:37:231:41:447:465:10
7:34
-0:08
25K
15.53 mi12:55:502:00:117:4418:27
7:37
+0:03
30K
18.64 mi13:19:442:24:057:4423:54
7:42
+0:05
20M
20.00 mi13:30:222:34:437:4410:38
7:49
+0:07
21M
21.00 mi13:38:432:43:047:468:21
8:21
+0:32
35K
21.75 mi13:44:192:48:407:455:36
7:29
-0:52
23M
23.00 mi13:53:442:58:057:459:25
7:31
+0:02
24M
24.00 mi14:00:543:05:157:437:10
7:10
-0:21
40K
24.85 mi14:06:523:11:137:425:58
6:59
-0:11
25.2M
25.20 mi14:09:293:13:507:422:37
7:35
+0:36
Finish
26.22 mi14:16:263:20:477:406:57
6:49
-0:46

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

6:49 /mi

Average Pace

7:40 /mi

Slowest Pace

8:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

20:05

10% of race

Time at Steady Pace

1:52:59

56% of race

Time at Slower Pace

1:07:43

34% of race

Average Pace: 7:39 /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 mi11:20:0924:307:5324:30
7:53
#13123
10K
6.21 mi11:44:2348:447:5124:14
7:48
#13120
15K
9.32 mi12:08:171:12:387:4823:54
7:42
#12611
20K
12.43 mi12:32:131:36:347:4623:56
7:42
#12125
Half
13.11 mi12:37:231:41:447:465:10
7:34
#12063
25K
15.53 mi12:55:502:00:117:4418:27
7:37
#11579
30K
18.64 mi13:19:442:24:057:4423:54
7:42
#10996
20M
20.00 mi13:30:222:34:437:4410:38
7:49
#10800
21M
21.00 mi13:38:432:43:047:468:21
8:21
#10732
35K
21.75 mi13:44:192:48:407:455:36
7:29
#10616
23M
23.00 mi13:53:442:58:057:459:25
7:31
#10344
24M
24.00 mi14:00:543:05:157:437:10
7:10
#10100
40K
24.85 mi14:06:523:11:137:425:58
6:59
#9784
25.2M
25.20 mi14:09:293:13:507:422:37
7:35
#9652
Finish
26.22 mi14:16:263:20:477:406:57
6:49
#9398
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi131233508350811786(Top 44%)2780(Top 24%)2780(Top 57%)
10K6.21 mi3.10 mi13120+33514-63514-613113(Top 49%)3493(Top 31%)3493(Top 72%)
15K9.32 mi3.11 mi12611+5093234+2803234+28011786(Top 44%)2780(Top 24%)2780(Top 57%)
20K12.43 mi3.11 mi12125+4862991+2432991+24310956(Top 41%)2377(Top 21%)2377(Top 49%)
Half13.11 mi0.68 mi12063+622953+382953+3810839(Top 41%)2268(Top 20%)2268(Top 46%)
25K15.53 mi2.42 mi11579+4842681+2722681+2729632(Top 36%)1835(Top 16%)1835(Top 38%)
30K18.64 mi3.11 mi10996+5832403+2782403+2788606(Top 32%)1557(Top 14%)1557(Top 32%)
20M20.00 mi1.36 mi10800+1962330+732330+739086(Top 34%)1826(Top 16%)1826(Top 37%)
21M21.00 mi1.00 mi10732+682316+142316+149547(Top 36%)2161(Top 19%)2161(Top 44%)
35K21.75 mi0.75 mi10616+1162281+352281+358495(Top 32%)1694(Top 15%)1694(Top 35%)
23M23.00 mi1.25 mi10344+2722170+1112170+1116576(Top 25%)1027(Top 9%)1027(Top 21%)
24M24.00 mi1.00 mi10100+2442074+962074+965603(Top 21%)762(Top 7%)762(Top 16%)
40K24.85 mi0.85 mi9784+3161959+1151959+1153776(Top 14%)380(Top 3%)380(Top 8%)
25.2M25.20 mi0.35 mi9652+1321909+501909+504421(Top 17%)576(Top 5%)576(Top 12%)
Finish26.22 mi1.02 mi9398+2541818+911818+914233(Top 16%)519(Top 5%)519(Top 11%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11786

Females

2780

F18-39

2780

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13113

Females

3493

F18-39

3493

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11786

Females

2780

F18-39

2780

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

10956

Females

2377

F18-39

2377

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

10839

Females

2268

F18-39

2268

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9632

Females

1835

F18-39

1835

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

8606

Females

1557

F18-39

1557

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9086

Females

1826

F18-39

1826

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

9547

Females

2161

F18-39

2161

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

8495

Females

1694

F18-39

1694

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

6576

Females

1027

F18-39

1027

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

5603

Females

762

F18-39

762

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3776

Females

380

F18-39

380

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4421

Females

576

F18-39

576

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2story building
+22ft-21ft

Overall

4233

Females

519

F18-39

519

Passing Analysis

Category:
Athletes Passed
4190*
Passed By
465
Net Change
+3725
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13123
5K → 10K315312+3#13123#13120
10K → 15K55647+509#13120#12611
15K → 20K50519+486#12611#12125
20K → Half708+62#12125#12063
Half → 25K4873+484#12063#11579
25K → 30K5907+583#11579#10996
30K → 20M207*11+196#10996#10800
20M → 21M10840+68#10800#10732
21M → 35K1259+116#10732#10616
35K → 23M2764+272#10616#10344
23M → 24M2462+244#10344#10100
24M → 40K316*0+316#10100#9784
40K → 25.2M1320+132#9784#9652
25.2M → Finish2573+254#9652#9398
TOTALS4190*465+3725

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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