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BOSTON MARATHON 2023

Elizabeth Henry

Bib: 17936•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 20%
Division (F18-39)
#0 / 4884
Top 35%
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
7:54/mi
24:32
↑ 97↓ 3451.5%
10K· 6.21 mi
7:47/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
7:32/mi
2:48:42
↑ 17↓ 861.7%
23M
7:59/mi
2:58:42
↑ 23↓ 630.6%
24M
7:47/mi
3:06:29
↓ 821.3%
40K· 24.85 mi
8:02/mi
3:13:21
↓ 200.3%
25.2M
8:39/mi
3:16:20
↑ 13↓ 160.2%
Finish· 26.22 mi
7:49/mi
3:24:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:41:44
Pace7:46 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:42:34
Pace7:49 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:1124:327:5424:32
7:54
-
10K
6.21 mi11:44:2348:447:5124:12
7:47
-0:07
15K
9.32 mi12:08:171:12:387:4823:54
7:42
-0:05
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 mi13:44:212:48:427:455:38
7:32
-0:49
23M
23.00 mi13:54:212:58:427:4610:00
7:59
+0:27
24M
24.00 mi14:02:083:06:297:467:47
7:47
-0:12
40K
24.85 mi14:09:003:13:217:476:52
8:02
+0:15
25.2M
25.20 mi14:11:593:16:207:472:59
8:39
+0:37
Finish
26.22 mi14:19:573:24:187:487:58
7:49
-0:50

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

7:32 /mi

Average Pace

7:48 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:58

94% of race

Time at Steady Pace

11:20

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:48 /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 mi11:20:1124:327:5424:32
7:54
#13214
10K
6.21 mi11:44:2348:447:5124:12
7:47
#13123
15K
9.32 mi12:08:171:12:387:4823:54
7:42
#12616
20K
12.43 mi12:32:131:36:347:4623:56
7:42
#12128
Half
13.11 mi12:37:231:41:447:465:10
7:34
#12066
25K
15.53 mi12:55:502:00:117:4418:27
7:37
#11582
30K
18.64 mi13:19:442:24:057:4423:54
7:42
#10999
20M
20.00 mi13:30:222:34:437:4410:38
7:49
#10803
21M
21.00 mi13:38:432:43:047:468:21
8:21
#10735
35K
21.75 mi13:44:212:48:427:455:38
7:32
#10630
23M
23.00 mi13:54:212:58:427:4610:00
7:59
#10560
24M
24.00 mi14:02:083:06:297:467:47
7:47
#10506
40K
24.85 mi14:09:003:13:217:476:52
8:02
#10480
25.2M
25.20 mi14:11:593:16:207:472:59
8:39
#10460
Finish
26.22 mi14:19:573:24:187:487:58
7:49
#10449
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi132143558355811793(Top 44%)2787(Top 24%)2787(Top 57%)
10K6.21 mi3.10 mi13123+913517+413517+4113026(Top 49%)3437(Top 30%)3437(Top 70%)
15K9.32 mi3.11 mi12616+5073239+2783239+27811793(Top 44%)2787(Top 24%)2787(Top 57%)
20K12.43 mi3.11 mi12128+4882994+2452994+24510963(Top 41%)2384(Top 21%)2384(Top 49%)
Half13.11 mi0.68 mi12066+622956+382956+3810871(Top 41%)2300(Top 20%)2300(Top 47%)
25K15.53 mi2.42 mi11582+4842684+2722684+2729644(Top 36%)1847(Top 16%)1847(Top 38%)
30K18.64 mi3.11 mi10999+5832406+2782406+2788610(Top 32%)1561(Top 14%)1561(Top 32%)
20M20.00 mi1.36 mi10803+1962333+732333+739099(Top 34%)1839(Top 16%)1839(Top 38%)
21M21.00 mi1.00 mi10735+682319+142319+149559(Top 36%)2173(Top 19%)2173(Top 44%)
35K21.75 mi0.75 mi10630+1052289+302289+308808(Top 33%)1841(Top 16%)1841(Top 38%)
23M23.00 mi1.25 mi10560+702283+62283+69680(Top 36%)2344(Top 21%)2344(Top 48%)
24M24.00 mi1.00 mi10506+542285-22285-29680(Top 36%)2429(Top 21%)2429(Top 50%)
40K24.85 mi0.85 mi10480+262301-162301-1610274(Top 39%)2785(Top 24%)2785(Top 57%)
25.2M25.20 mi0.35 mi10460+202301230110495(Top 39%)2921(Top 26%)2921(Top 60%)
Finish26.22 mi1.02 mi10449+112321-202321-2010816(Top 41%)3090(Top 27%)3090(Top 63%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11793

Females

2787

F18-39

2787

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13026

Females

3437

F18-39

3437

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11793

Females

2787

F18-39

2787

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

10963

Females

2384

F18-39

2384

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

10871

Females

2300

F18-39

2300

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9644

Females

1847

F18-39

1847

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

8610

Females

1561

F18-39

1561

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9099

Females

1839

F18-39

1839

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

9559

Females

2173

F18-39

2173

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

8808

Females

1841

F18-39

1841

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

9680

Females

2344

F18-39

2344

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

9680

Females

2429

F18-39

2429

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10274

Females

2785

F18-39

2785

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10495

Females

2921

F18-39

2921

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

10816

Females

3090

F18-39

3090

Passing Analysis

Category:
Athletes Passed
3415*
Passed By
650
Net Change
+2765
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13214
5K → 10K357266+91#13214#13123
10K → 15K55649+507#13123#12616
15K → 20K50517+488#12616#12128
20K → Half719+62#12128#12066
Half → 25K4873+484#12066#11582
25K → 30K5918+583#11582#10999
30K → 20M208*12+196#10999#10803
20M → 21M10840+68#10803#10735
21M → 35K11712+105#10735#10630
35K → 23M11848+70#10630#10560
23M → 24M9339+54#10560#10506
24M → 40K8458+26#10506#10480
40K → 25.2M3515+20#10480#10460
25.2M → Finish8574+11#10460#10449
TOTALS3415*650+2765

* 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