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BOSTON MARATHON 2023

Suzanne London

Bib: 1969•F

TN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 18%
Gender (Female)
#0 / 11423
Top 3%
Division (F18-39)
#0 / 4884
Top 7%
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
6:45/mi
20:59
↑ 97↓ 3451.5%
10K· 6.21 mi
6:45/mi
41:58
↑ 79↓ 1380.4%
15K· 9.32 mi
6:43/mi
1:02:51
↑ 67↓ 78
20K· 12.43 mi
6:45/mi
1:23:48
↑ 106↓ 860.1%
Half· 13.11 mi
6:43/mi
1:28:23
↑ 19↓ 370.5%
25K· 15.53 mi
6:47/mi
1:44:51
↑ 66↓ 880.2%
30K· 18.64 mi
7:02/mi
2:06:43
↑ 181↓ 1480.2%
20M
7:10/mi
2:16:28
↑ 64↓ 500.2%
21M
7:40/mi
2:24:08
↑ 106↓ 241.6%
35K· 21.75 mi
6:42/mi
2:29:09
↑ 17↓ 861.7%
23M
7:22/mi
2:38:23
↑ 23↓ 630.6%
24M
7:50/mi
2:46:13
↓ 821.3%
40K· 24.85 mi
7:49/mi
2:52:54
↓ 200.3%
25.2M
8:27/mi
2:55:49
↑ 13↓ 160.2%
Finish· 26.22 mi
7:20/mi
3:03:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:23
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:34:54
Pace7:14 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3120:596:4520:59
6:45
-
10K
6.21 mi10:42:3041:586:4520:59
6:45
0:00
15K
9.32 mi11:03:231:02:516:4520:53
6:43
-0:02
20K
12.43 mi11:24:201:23:486:4520:57
6:45
+0:02
Half
13.11 mi11:28:551:28:236:454:35
6:43
-0:02
25K
15.53 mi11:45:231:44:516:4516:28
6:47
+0:04
30K
18.64 mi12:07:152:06:436:4821:52
7:02
+0:15
20M
20.00 mi12:17:002:16:286:499:45
7:10
+0:08
21M
21.00 mi12:24:402:24:086:527:40
7:40
+0:30
35K
21.75 mi12:29:412:29:096:515:01
6:42
-0:58
23M
23.00 mi12:38:552:38:236:539:14
7:22
+0:40
24M
24.00 mi12:46:452:46:136:567:50
7:50
+0:28
40K
24.85 mi12:53:262:52:546:576:41
7:49
-0:01
25.2M
25.20 mi12:56:212:55:496:592:55
8:27
+0:38
Finish
26.22 mi13:03:493:03:177:007:28
7:20
-1:07

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

6:42 /mi

Average Pace

7:00 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:24

51% of race

Time at Steady Pace

48:05

26% of race

Time at Slower Pace

41:48

23% of race

Average Pace: 6:59 /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 mi10:21:3120:596:4520:59
6:45
#4211
10K
6.21 mi10:42:3041:586:4520:59
6:45
#4552
15K
9.32 mi11:03:231:02:516:4520:53
6:43
#4449
20K
12.43 mi11:24:201:23:486:4520:57
6:45
#4294
Half
13.11 mi11:28:551:28:236:454:35
6:43
#4286
25K
15.53 mi11:45:231:44:516:4516:28
6:47
#4216
30K
18.64 mi12:07:152:06:436:4821:52
7:02
#4301
20M
20.00 mi12:17:002:16:286:499:45
7:10
#4361
21M
21.00 mi12:24:402:24:086:527:40
7:40
#4442
35K
21.75 mi12:29:412:29:096:515:01
6:42
#4389
23M
23.00 mi12:38:552:38:236:539:14
7:22
#4505
24M
24.00 mi12:46:452:46:136:567:50
7:50
#4715
40K
24.85 mi12:53:262:52:546:576:41
7:49
#4816
25.2M
25.20 mi12:56:212:55:496:592:55
8:27
#4865
Finish
26.22 mi13:03:493:03:177:007:28
7:20
#4903
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi42112632634364(Top 16%)275(Top 2%)275(Top 6%)
10K6.21 mi3.10 mi4552-341294-31294-314876(Top 18%)346(Top 3%)346(Top 7%)
15K9.32 mi3.11 mi4449+103284+10284+104364(Top 16%)275(Top 2%)275(Top 6%)
20K12.43 mi3.11 mi4294+155267+17267+173944(Top 15%)229(Top 2%)229(Top 5%)
Half13.11 mi0.68 mi4286+8270-3270-34633(Top 17%)326(Top 3%)326(Top 7%)
25K15.53 mi2.42 mi4216+70258+12258+124096(Top 15%)255(Top 2%)255(Top 5%)
30K18.64 mi3.11 mi4301-85266-8266-84608(Top 17%)341(Top 3%)341(Top 7%)
20M20.00 mi1.36 mi4361-60284-18284-185011(Top 19%)457(Top 4%)457(Top 9%)
21M21.00 mi1.00 mi4442-81293-9293-95466(Top 21%)648(Top 6%)648(Top 13%)
35K21.75 mi0.75 mi4389+53289+4289+43661(Top 14%)278(Top 2%)278(Top 6%)
23M23.00 mi1.25 mi4505-116303-14303-145739(Top 22%)722(Top 6%)722(Top 15%)
24M24.00 mi1.00 mi4715-210330-27330-2710039(Top 38%)2608(Top 23%)2608(Top 53%)
40K24.85 mi0.85 mi4816-101359-29359-298791(Top 33%)2068(Top 18%)2068(Top 42%)
25.2M25.20 mi0.35 mi4865-49374-15374-159270(Top 35%)2329(Top 20%)2329(Top 48%)
Finish26.22 mi1.02 mi4903-38389-15389-157314(Top 27%)1538(Top 13%)1538(Top 31%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21story building
+97ft-345ft

Overall

4364

Females

275

F18-39

275

5K→10K

3.1 - 6.2 mi

Top 18%
×5story building
+79ft-138ft

Overall

4876

Females

346

F18-39

346

10K→15K

6.2 - 9.3 mi

Top 16%
×3story building
+67ft-78ft

Overall

4364

Females

275

F18-39

275

15K→20K

9.3 - 12.4 mi

Top 15%
×5story building
+106ft-86ft

Overall

3944

Females

229

F18-39

229

20K→Half

12.4 - 13.1 mi

Top 17%
×2story building
+19ft-37ft

Overall

4633

Females

326

F18-39

326

Half→25K

13.1 - 15.5 mi

Top 15%
×4story building
+66ft-88ft

Overall

4096

Females

255

F18-39

255

25K→30K

15.5 - 18.6 mi

Top 17%
×9story building
+181ft-148ft

Overall

4608

Females

341

F18-39

341

30K→20M

18.6 - 20.0 mi

Top 19%
×5story building
+64ft-50ft

Overall

5011

Females

457

F18-39

457

20M→21M

20.0 - 21.0 mi

Top 21%
×8story building
+106ft-24ft

Overall

5466

Females

648

F18-39

648

21M→35K

21.0 - 21.8 mi

Top 14%
×7story building
+17ft-86ft

Overall

3661

Females

278

F18-39

278

35K→23M

21.8 - 23.0 mi

Top 22%
×5story building
+23ft-63ft

Overall

5739

Females

722

F18-39

722

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10039

Females

2608

F18-39

2608

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8791

Females

2068

F18-39

2068

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9270

Females

2329

F18-39

2329

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7314

Females

1538

F18-39

1538

Passing Analysis

Category:
Athletes Passed
975
Passed By
1667
Net Change
-692
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4211
5K → 10K96437-341#4211#4552
10K → 15K18178+103#4552#4449
15K → 20K18934+155#4449#4294
20K → Half2214+8#4294#4286
Half → 25K12555+70#4286#4216
25K → 30K94179-85#4216#4301
30K → 20M44104-60#4301#4361
20M → 21M37118-81#4361#4442
21M → 35K6916+53#4442#4389
35K → 23M41157-116#4389#4505
23M → 24M12222-210#4505#4715
24M → 40K20121-101#4715#4816
40K → 25.2M756-49#4816#4865
25.2M → Finish3876-38#4865#4903
TOTALS9751667-692
📊

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