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BOSTON MARATHON 2023

Elizabeth Phelps

Bib: 22470•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
8:30/mi
26:24
↑ 97↓ 3451.5%
10K· 6.21 mi
8:44/mi
53:31
↑ 79↓ 1380.4%
15K· 9.32 mi
8:56/mi
1:21:16
↑ 67↓ 78
20K· 12.43 mi
9:04/mi
1:49:27
↑ 106↓ 860.1%
Half· 13.11 mi
8:39/mi
1:55:21
↑ 19↓ 370.5%
25K· 15.53 mi
9:02/mi
2:17:16
↑ 66↓ 880.2%
30K· 18.64 mi
10:16/mi
2:49:11
↑ 181↓ 1480.2%
20M
9:41/mi
3:02:20
↑ 64↓ 500.2%
21M
10:16/mi
3:12:36
↑ 106↓ 241.6%
35K· 21.75 mi
9:37/mi
3:19:48
↑ 17↓ 861.7%
23M
9:13/mi
3:31:21
↑ 23↓ 630.6%
24M
8:52/mi
3:40:13
↓ 821.3%
40K· 24.85 mi
9:03/mi
3:47:57
↓ 200.3%
25.2M
9:46/mi
3:51:19
↑ 13↓ 160.2%
Finish· 26.22 mi
9:01/mi
4:00:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:21
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:05:09
Pace9:33 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:0026:248:3026:24
8:30
-
10K
6.21 mi11:51:0753:318:3727:07
8:44
+0:14
15K
9.32 mi12:18:521:21:168:4327:45
8:56
+0:12
20K
12.43 mi12:47:031:49:278:4828:11
9:04
+0:08
Half
13.11 mi12:52:571:55:218:485:54
8:39
-0:25
25K
15.53 mi13:14:522:17:168:5021:55
9:02
+0:23
30K
18.64 mi13:46:472:49:119:0531:55
10:16
+1:14
20M
20.00 mi13:59:563:02:209:0713:09
9:41
-0:35
21M
21.00 mi14:10:123:12:369:1010:16
10:16
+0:35
35K
21.75 mi14:17:243:19:489:117:12
9:37
-0:39
23M
23.00 mi14:28:573:31:219:1111:33
9:13
-0:24
24M
24.00 mi14:37:493:40:139:118:52
8:52
-0:21
40K
24.85 mi14:45:333:47:579:107:44
9:03
+0:11
25.2M
25.20 mi14:48:553:51:199:113:22
9:46
+0:43
Finish
26.22 mi14:58:064:00:309:119:11
9:01
-0:45

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

8:30 /mi

Average Pace

9:11 /mi

Slowest Pace

10:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

59:25

25% of race

Time at Steady Pace

1:55:11

48% of race

Time at Slower Pace

1:05:54

27% of race

Average Pace: 9:10 /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 mi11:24:0026:248:3026:24
8:30
#17557
10K
6.21 mi11:51:0753:318:3727:07
8:44
#18598
15K
9.32 mi12:18:521:21:168:4327:45
8:56
#19151
20K
12.43 mi12:47:031:49:278:4828:11
9:04
#19360
Half
13.11 mi12:52:571:55:218:485:54
8:39
#19320
25K
15.53 mi13:14:522:17:168:5021:55
9:02
#19290
30K
18.64 mi13:46:472:49:119:0531:55
10:16
#19948
20M
20.00 mi13:59:563:02:209:0713:09
9:41
#19891
21M
21.00 mi14:10:123:12:369:1010:16
10:16
#19819
35K
21.75 mi14:17:243:19:489:117:12
9:37
#19837
23M
23.00 mi14:28:573:31:219:1111:33
9:13
#19699
24M
24.00 mi14:37:493:40:139:118:52
8:52
#19570
40K
24.85 mi14:45:333:47:579:107:44
9:03
#19461
25.2M
25.20 mi14:48:553:51:199:113:22
9:46
#19429
Finish
26.22 mi14:58:064:00:309:119:11
9:01
#19399
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi175576292629220190(Top 76%)7774(Top 68%)7774(Top 428%)
10K6.21 mi3.10 mi18598-10416883-5916883-59119580(Top 74%)7437(Top 65%)7437(Top 409%)
15K9.32 mi3.11 mi19151-5537224-3417224-34120190(Top 76%)7774(Top 68%)7774(Top 428%)
20K12.43 mi3.11 mi19360-2097345-1217345-12120015(Top 75%)7687(Top 67%)7687(Top 423%)
Half13.11 mi0.68 mi19320+407315+307315+3018686(Top 70%)6900(Top 60%)6900(Top 380%)
25K15.53 mi2.42 mi19290+307298+177298+1719170(Top 72%)7228(Top 63%)7228(Top 398%)
30K18.64 mi3.11 mi19948-6587703-4057703-40521718(Top 82%)8749(Top 77%)8749(Top 482%)
20M20.00 mi1.36 mi19891+577678+257678+2519505(Top 73%)7573(Top 66%)7573(Top 417%)
21M21.00 mi1.00 mi19819+727636+427636+4218946(Top 71%)7310(Top 64%)7310(Top 402%)
35K21.75 mi0.75 mi19837-187659-237659-2320224(Top 76%)8062(Top 71%)8062(Top 444%)
23M23.00 mi1.25 mi19699+1387582+777582+7717207(Top 65%)6409(Top 56%)6409(Top 353%)
24M24.00 mi1.00 mi19570+1297521+617521+6116635(Top 62%)6165(Top 54%)6165(Top 339%)
40K24.85 mi0.85 mi19461+1097469+527469+5216438(Top 62%)6111(Top 53%)6111(Top 336%)
25.2M25.20 mi0.35 mi19429+327451+187451+1816455(Top 62%)6149(Top 54%)6149(Top 338%)
Finish26.22 mi1.02 mi19399+307437+147437+1418056(Top 68%)6937(Top 61%)6937(Top 382%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

20190

Females

7774

F45-49

7774

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19580

Females

7437

F45-49

7437

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

20190

Females

7774

F45-49

7774

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

20015

Females

7687

F45-49

7687

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

18686

Females

6900

F45-49

6900

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

19170

Females

7228

F45-49

7228

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21718

Females

8749

F45-49

8749

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

19505

Females

7573

F45-49

7573

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

18946

Females

7310

F45-49

7310

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20224

Females

8062

F45-49

8062

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

17207

Females

6409

F45-49

6409

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

16635

Females

6165

F45-49

6165

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16438

Females

6111

F45-49

6111

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16455

Females

6149

F45-49

6149

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

18056

Females

6937

F45-49

6937

Passing Analysis

Category:
Athletes Passed
1190
Passed By
3032
Net Change
-1842
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17557
5K → 10K571098-1041#17557#18598
10K → 15K49602-553#18598#19151
15K → 20K96305-209#19151#19360
20K → Half5010+40#19360#19320
Half → 25K133103+30#19320#19290
25K → 30K37695-658#19290#19948
30K → 20M11154+57#19948#19891
20M → 21M11442+72#19891#19819
21M → 35K3654-18#19819#19837
35K → 23M15214+138#19837#19699
23M → 24M1356+129#19699#19570
24M → 40K1156+109#19570#19461
40K → 25.2M386+32#19461#19429
25.2M → Finish6737+30#19429#19399
TOTALS11903032-1842
📊

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