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BOSTON MARATHON 2023

Liz Maguire

Bib: 17190•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 33%
Gender (Female)
#0 / 11423
Top 13%
Masters (Masters Women)
#0 / 6539
Top 5%
Division (F55-59)
#0 / 815
Top 1%
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
7:35/mi
23:34
↑ 97↓ 3451.5%
10K· 6.21 mi
7:32/mi
46:57
↑ 79↓ 1380.4%
15K· 9.32 mi
7:32/mi
1:10:21
↑ 67↓ 78
20K· 12.43 mi
7:29/mi
1:33:35
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:38:41
↑ 19↓ 370.5%
25K· 15.53 mi
7:29/mi
1:56:49
↑ 66↓ 880.2%
30K· 18.64 mi
7:32/mi
2:20:14
↑ 181↓ 1480.2%
20M
7:32/mi
2:30:28
↑ 64↓ 500.2%
21M
7:45/mi
2:38:12
↑ 106↓ 241.6%
35K· 21.75 mi
7:45/mi
2:44:00
↑ 17↓ 861.7%
23M
7:34/mi
2:53:29
↑ 23↓ 630.6%
24M
7:30/mi
3:00:59
↓ 821.3%
40K· 24.85 mi
7:45/mi
3:07:37
↓ 200.3%
25.2M
8:16/mi
3:10:28
↑ 13↓ 160.2%
Finish· 26.22 mi
7:39/mi
3:18:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:38:41
Pace7:32 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:39:35
Pace7:36 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0223:347:3523:34
7:35
-
10K
6.21 mi11:37:2546:577:3323:23
7:32
-0:03
15K
9.32 mi12:00:491:10:217:3323:24
7:32
0:00
20K
12.43 mi12:24:031:33:357:3223:14
7:29
-0:03
Half
13.11 mi12:29:091:38:417:325:06
7:29
0:00
25K
15.53 mi12:47:171:56:497:3118:08
7:29
0:00
30K
18.64 mi13:10:422:20:147:3123:25
7:32
+0:03
20M
20.00 mi13:20:562:30:287:3110:14
7:32
0:00
21M
21.00 mi13:28:402:38:127:327:44
7:45
+0:13
35K
21.75 mi13:34:282:44:007:325:48
7:45
0:00
23M
23.00 mi13:43:572:53:297:339:29
7:34
-0:11
24M
24.00 mi13:51:273:00:597:327:30
7:30
-0:04
40K
24.85 mi13:58:053:07:377:336:38
7:45
+0:15
25.2M
25.20 mi14:00:563:10:287:332:51
8:16
+0:31
Finish
26.22 mi14:08:443:18:167:347:48
7:39
-0:37

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

7:29 /mi

Average Pace

7:34 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:25

99% of race

Time at Steady Pace

2:51

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:34 /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 mi11:14:0223:347:3523:34
7:35
#10409
10K
6.21 mi11:37:2546:577:3323:23
7:32
#10527
15K
9.32 mi12:00:491:10:217:3323:24
7:32
#10484
20K
12.43 mi12:24:031:33:357:3223:14
7:29
#10088
Half
13.11 mi12:29:091:38:417:325:06
7:29
#10075
25K
15.53 mi12:47:171:56:497:3118:08
7:29
#9814
30K
18.64 mi13:10:422:20:147:3123:25
7:32
#9337
20M
20.00 mi13:20:562:30:287:3110:14
7:32
#9137
21M
21.00 mi13:28:402:38:127:327:44
7:45
#8916
35K
21.75 mi13:34:282:44:007:325:48
7:45
#8947
23M
23.00 mi13:43:572:53:297:339:29
7:34
#8802
24M
24.00 mi13:51:273:00:597:327:30
7:30
#8725
40K
24.85 mi13:58:053:07:377:336:38
7:45
#8685
25.2M
25.20 mi14:00:563:10:287:332:51
8:16
#8678
Finish
26.22 mi14:08:443:18:167:347:48
7:39
#8680
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi104092039203910439(Top 39%)2040(Top 18%)2040(Top 250%)
10K6.21 mi3.10 mi10527-1182085-462085-4610673(Top 40%)2137(Top 19%)2137(Top 262%)
15K9.32 mi3.11 mi10484+432054+312054+3110439(Top 39%)2040(Top 18%)2040(Top 250%)
20K12.43 mi3.11 mi10088+3961877+1771877+1779123(Top 34%)1543(Top 14%)1543(Top 189%)
Half13.11 mi0.68 mi10075+131868+91868+910140(Top 38%)1973(Top 17%)1973(Top 242%)
25K15.53 mi2.42 mi9814+2611770+981770+988638(Top 32%)1402(Top 12%)1402(Top 172%)
30K18.64 mi3.11 mi9337+4771625+1451625+1457458(Top 28%)1095(Top 10%)1095(Top 134%)
20M20.00 mi1.36 mi9137+2001562+631562+637035(Top 26%)1042(Top 9%)1042(Top 128%)
21M21.00 mi1.00 mi8916+2211493+691493+695850(Top 22%)769(Top 7%)769(Top 94%)
35K21.75 mi0.75 mi8947-311521-281521-2810230(Top 38%)2496(Top 22%)2496(Top 306%)
23M23.00 mi1.25 mi8802+1451490+311490+316946(Top 26%)1158(Top 10%)1158(Top 142%)
24M24.00 mi1.00 mi8725+771478+121478+127733(Top 29%)1573(Top 14%)1573(Top 193%)
40K24.85 mi0.85 mi8685+401487-91487-98407(Top 32%)1897(Top 17%)1897(Top 233%)
25.2M25.20 mi0.35 mi8678+71491-41491-48146(Top 31%)1873(Top 16%)1873(Top 230%)
Finish26.22 mi1.02 mi8680-21521-301521-309666(Top 36%)2545(Top 22%)2545(Top 312%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

10439

Females

2040

F55-59

2040

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

10673

Females

2137

F55-59

2137

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

10439

Females

2040

F55-59

2040

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9123

Females

1543

F55-59

1543

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10140

Females

1973

F55-59

1973

Half→25K

13.1 - 15.5 mi

Top 32%
×4story building
+66ft-88ft

Overall

8638

Females

1402

F55-59

1402

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7458

Females

1095

F55-59

1095

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

7035

Females

1042

F55-59

1042

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

5850

Females

769

F55-59

769

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10230

Females

2496

F55-59

2496

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

6946

Females

1158

F55-59

1158

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

7733

Females

1573

F55-59

1573

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8407

Females

1897

F55-59

1897

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8146

Females

1873

F55-59

1873

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

9666

Females

2545

F55-59

2545

Passing Analysis

Category:
Athletes Passed
2560*
Passed By
831
Net Change
+1729
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10409
5K → 10K228*346-118#10409#10527
10K → 15K222179+43#10527#10484
15K → 20K414*18+396#10484#10088
20K → Half41*28+13#10088#10075
Half → 25K275*14+261#10075#9814
25K → 30K486*9+477#9814#9337
30K → 20M2088+200#9337#9137
20M → 21M2232+221#9137#8916
21M → 35K3263-31#8916#8947
35K → 23M16217+145#8947#8802
23M → 24M9619+77#8802#8725
24M → 40K8141+40#8725#8685
40K → 25.2M2821+7#8685#8678
25.2M → Finish6466-2#8678#8680
TOTALS2560*831+1729

* 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