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BOSTON MARATHON 2023

Elizabeth Riley

Bib: 25266•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
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
10:29/mi
32:34
↑ 97↓ 3451.5%
10K· 6.21 mi
10:25/mi
1:04:57
↑ 79↓ 1380.4%
15K· 9.32 mi
10:15/mi
1:36:48
↑ 67↓ 78
20K· 12.43 mi
10:17/mi
2:08:44
↑ 106↓ 860.1%
Half· 13.11 mi
9:45/mi
2:15:23
↑ 19↓ 370.5%
25K· 15.53 mi
10:36/mi
2:41:05
↑ 66↓ 880.2%
30K· 18.64 mi
11:04/mi
3:15:29
↑ 181↓ 1480.2%
20M
10:58/mi
3:30:23
↑ 64↓ 500.2%
21M
11:38/mi
3:42:01
↑ 106↓ 241.6%
35K· 21.75 mi
10:51/mi
3:50:08
↑ 17↓ 861.7%
23M
12:52/mi
4:06:15
↑ 23↓ 630.6%
24M
11:19/mi
4:17:34
↓ 821.3%
40K· 24.85 mi
11:56/mi
4:27:46
↓ 200.3%
25.2M
12:51/mi
4:32:12
↑ 13↓ 160.2%
Finish· 26.22 mi
10:53/mi
4:43:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:15:23
Pace10:20 /mi
2nd Half
Distance13.11 mi
Time2:27:54
Pace11:17 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:5032:3410:2932:34
10:29
-
10K
6.21 mi12:27:131:04:5710:2732:23
10:25
-0:04
15K
9.32 mi12:59:041:36:4810:2331:51
10:15
-0:10
20K
12.43 mi13:31:002:08:4410:2231:56
10:17
+0:02
Half
13.11 mi13:37:392:15:2310:206:39
9:45
-0:32
25K
15.53 mi14:03:212:41:0510:2225:42
10:36
+0:51
30K
18.64 mi14:37:453:15:2910:2934:24
11:04
+0:28
20M
20.00 mi14:52:393:30:2310:3114:54
10:58
-0:06
21M
21.00 mi15:04:173:42:0110:3411:38
11:38
+0:40
35K
21.75 mi15:12:243:50:0810:358:07
10:51
-0:47
23M
23.00 mi15:28:314:06:1510:4216:07
12:52
+2:01
24M
24.00 mi15:39:504:17:3410:4411:19
11:19
-1:33
40K
24.85 mi15:50:024:27:4610:4610:12
11:56
+0:37
25.2M
25.20 mi15:54:284:32:1210:484:26
12:51
+0:55
Finish
26.22 mi16:05:334:43:1710:4911:05
10:53
-1:58

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

9:45 /mi

Average Pace

10:49 /mi

Slowest Pace

12:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:49

36% of race

Time at Steady Pace

2:18:05

49% of race

Time at Slower Pace

42:23

15% of race

Average Pace: 10:48 /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 mi11:54:5032:3410:2932:34
10:29
#24669
10K
6.21 mi12:27:131:04:5710:2732:23
10:25
#24618
15K
9.32 mi12:59:041:36:4810:2331:51
10:15
#24401
20K
12.43 mi13:31:002:08:4410:2231:56
10:17
#24131
Half
13.11 mi13:37:392:15:2310:206:39
9:45
#24054
25K
15.53 mi14:03:212:41:0510:2225:42
10:36
#23903
30K
18.64 mi14:37:453:15:2910:2934:24
11:04
#23787
20M
20.00 mi14:52:393:30:2310:3114:54
10:58
#23688
21M
21.00 mi15:04:173:42:0110:3411:38
11:38
#23611
35K
21.75 mi15:12:243:50:0810:358:07
10:51
#23596
23M
23.00 mi15:28:314:06:1510:4216:07
12:52
#23739
24M
24.00 mi15:39:504:17:3410:4411:19
11:19
#23751
40K
24.85 mi15:50:024:27:4610:4610:12
11:56
#23754
25.2M
25.20 mi15:54:284:32:1210:484:26
12:51
#23759
Finish
26.22 mi16:05:334:43:1710:4911:05
10:53
#23768
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24669102551025523991(Top 90%)9885(Top 87%)9885(Top 202%)
10K6.21 mi3.10 mi24618+5110220+3510220+3524541(Top 92%)10190(Top 89%)10190(Top 209%)
15K9.32 mi3.11 mi24401+21710107+11310107+11323991(Top 90%)9885(Top 87%)9885(Top 202%)
20K12.43 mi3.11 mi24131+2709967+1409967+14023438(Top 88%)9587(Top 84%)9587(Top 196%)
Half13.11 mi0.68 mi24054+779924+439924+4322784(Top 86%)9239(Top 81%)9239(Top 189%)
25K15.53 mi2.42 mi23903+1519850+749850+7423361(Top 88%)9593(Top 84%)9593(Top 196%)
30K18.64 mi3.11 mi23787+1169800+509800+5023208(Top 87%)9572(Top 84%)9572(Top 196%)
20M20.00 mi1.36 mi23688+999760+409760+4022656(Top 85%)9338(Top 82%)9338(Top 191%)
21M21.00 mi1.00 mi23611+779726+349726+3422139(Top 83%)9078(Top 79%)9078(Top 186%)
35K21.75 mi0.75 mi23596+159720+69720+623035(Top 87%)9612(Top 84%)9612(Top 197%)
23M23.00 mi1.25 mi23739-1439807-879807-8724965(Top 94%)10615(Top 93%)10615(Top 217%)
24M24.00 mi1.00 mi23751-129824-179824-1723618(Top 89%)9954(Top 87%)9954(Top 204%)
40K24.85 mi0.85 mi23754-39832-89832-823814(Top 89%)10090(Top 88%)10090(Top 207%)
25.2M25.20 mi0.35 mi23759-59838-69838-623805(Top 89%)10093(Top 88%)10093(Top 207%)
Finish26.22 mi1.02 mi23768-99852-149852-1423757(Top 89%)10035(Top 88%)10035(Top 205%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

23991

Females

9885

F18-39

9885

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

24541

Females

10190

F18-39

10190

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

23991

Females

9885

F18-39

9885

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

23438

Females

9587

F18-39

9587

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

22784

Females

9239

F18-39

9239

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

23361

Females

9593

F18-39

9593

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

23208

Females

9572

F18-39

9572

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

22656

Females

9338

F18-39

9338

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

22139

Females

9078

F18-39

9078

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

23035

Females

9612

F18-39

9612

35K→23M

21.8 - 23.0 mi

Top 94%
×5story building
+23ft-63ft

Overall

24965

Females

10615

F18-39

10615

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

23618

Females

9954

F18-39

9954

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

23814

Females

10090

F18-39

10090

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

23805

Females

10093

F18-39

10093

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

23757

Females

10035

F18-39

10035

Passing Analysis

Category:
Athletes Passed
1500
Passed By
599
Net Change
+901
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24669
5K → 10K221170+51#24669#24618
10K → 15K24932+217#24618#24401
15K → 20K28313+270#24401#24131
20K → Half781+77#24131#24054
Half → 25K17322+151#24054#23903
25K → 30K17256+116#23903#23787
30K → 20M11314+99#23787#23688
20M → 21M8710+77#23688#23611
21M → 35K2813+15#23611#23596
35K → 23M11154-143#23596#23739
23M → 24M2739-12#23739#23751
24M → 40K2831-3#23751#23754
40K → 25.2M813-5#23754#23759
25.2M → Finish2231-9#23759#23768
TOTALS1500599+901
📊

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