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BOSTON MARATHON 2023

Julianne Rambow

Bib: 13898•F

WA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 38%
Gender (Female)
#0 / 11423
Top 19%
Division (F18-39)
#0 / 4884
Top 34%
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
7:51/mi
24:23
↑ 97↓ 3451.5%
10K· 6.21 mi
7:50/mi
48:43
↑ 79↓ 1380.4%
15K· 9.32 mi
7:49/mi
1:13:00
↑ 67↓ 78
20K· 12.43 mi
8:01/mi
1:37:53
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:43:05
↑ 19↓ 370.5%
25K· 15.53 mi
7:39/mi
2:01:39
↑ 66↓ 880.2%
30K· 18.64 mi
7:48/mi
2:25:52
↑ 181↓ 1480.2%
20M
7:38/mi
2:36:14
↑ 64↓ 500.2%
21M
7:58/mi
2:44:12
↑ 106↓ 241.6%
35K· 21.75 mi
7:24/mi
2:49:44
↑ 17↓ 861.7%
23M
7:49/mi
2:59:31
↑ 23↓ 630.6%
24M
7:33/mi
3:07:04
↓ 821.3%
40K· 24.85 mi
7:36/mi
3:13:34
↓ 200.3%
25.2M
8:01/mi
3:16:20
↑ 13↓ 160.2%
Finish· 26.22 mi
7:10/mi
3:23:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:43:05
Pace7:52 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:40:33
Pace7:40 /mi
📊Negative Split: 2.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1224:237:5124:23
7:51
-
10K
6.21 mi11:17:3248:437:5024:20
7:50
-0:01
15K
9.32 mi11:41:491:13:007:5024:17
7:49
-0:01
20K
12.43 mi12:06:421:37:537:5324:53
8:01
+0:12
Half
13.11 mi12:11:541:43:057:525:12
7:37
-0:24
25K
15.53 mi12:30:282:01:397:5018:34
7:39
+0:02
30K
18.64 mi12:54:412:25:527:4924:13
7:48
+0:09
20M
20.00 mi13:05:032:36:147:4910:22
7:38
-0:10
21M
21.00 mi13:13:012:44:127:497:58
7:58
+0:20
35K
21.75 mi13:18:332:49:447:485:32
7:24
-0:34
23M
23.00 mi13:28:202:59:317:489:47
7:49
+0:25
24M
24.00 mi13:35:533:07:047:487:33
7:33
-0:16
40K
24.85 mi13:42:233:13:347:476:30
7:36
+0:03
25.2M
25.20 mi13:45:093:16:207:472:46
8:01
+0:25
Finish
26.22 mi13:52:273:23:387:467:18
7:10
-0:51

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

7:10 /mi

Average Pace

7:46 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:01

83% of race

Time at Steady Pace

35:37

17% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:46 /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 mi10:53:1224:237:5124:23
7:51
#12828
10K
6.21 mi11:17:3248:437:5024:20
7:50
#13091
15K
9.32 mi11:41:491:13:007:5024:17
7:49
#12979
20K
12.43 mi12:06:421:37:537:5324:53
8:01
#13088
Half
13.11 mi12:11:541:43:057:525:12
7:37
#12982
25K
15.53 mi12:30:282:01:397:5018:34
7:39
#12452
30K
18.64 mi12:54:412:25:527:4924:13
7:48
#11815
20M
20.00 mi13:05:032:36:147:4910:22
7:38
#11465
21M
21.00 mi13:13:012:44:127:497:58
7:58
#11153
35K
21.75 mi13:18:332:49:447:485:32
7:24
#11019
23M
23.00 mi13:28:202:59:317:489:47
7:49
#10837
24M
24.00 mi13:35:533:07:047:487:33
7:33
#10701
40K
24.85 mi13:42:233:13:347:476:30
7:36
#10538
25.2M
25.20 mi13:45:093:16:207:472:46
8:01
#10458
Finish
26.22 mi13:52:273:23:387:467:18
7:10
#10246
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi128283334333412874(Top 48%)3392(Top 30%)3392(Top 69%)
10K6.21 mi3.10 mi13091-2633497-1633497-16313403(Top 50%)3653(Top 32%)3653(Top 75%)
15K9.32 mi3.11 mi12979+1123444+533444+5312874(Top 48%)3392(Top 30%)3392(Top 69%)
20K12.43 mi3.11 mi13088-1093535-913535-9113512(Top 51%)3820(Top 33%)3820(Top 78%)
Half13.11 mi0.68 mi12982+1063471+643471+6411253(Top 42%)2484(Top 22%)2484(Top 51%)
25K15.53 mi2.42 mi12452+5303200+2713200+2719992(Top 38%)2004(Top 18%)2004(Top 41%)
30K18.64 mi3.11 mi11815+6372874+3262874+3269338(Top 35%)1858(Top 16%)1858(Top 38%)
20M20.00 mi1.36 mi11465+3502696+1782696+1787718(Top 29%)1306(Top 11%)1306(Top 27%)
21M21.00 mi1.00 mi11153+3122535+1612535+1617187(Top 27%)1212(Top 11%)1212(Top 25%)
35K21.75 mi0.75 mi11019+1342481+542481+547836(Top 29%)1444(Top 13%)1444(Top 30%)
23M23.00 mi1.25 mi10837+1822419+622419+628541(Top 32%)1816(Top 16%)1816(Top 37%)
24M24.00 mi1.00 mi10701+1362378+412378+418088(Top 30%)1721(Top 15%)1721(Top 35%)
40K24.85 mi0.85 mi10538+1632329+492329+497387(Top 28%)1526(Top 13%)1526(Top 31%)
25.2M25.20 mi0.35 mi10458+802299+302299+306757(Top 25%)1343(Top 12%)1343(Top 27%)
Finish26.22 mi1.02 mi10246+2122220+792220+796225(Top 23%)1149(Top 10%)1149(Top 24%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

12874

Females

3392

F18-39

3392

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

13403

Females

3653

F18-39

3653

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

12874

Females

3392

F18-39

3392

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

13512

Females

3820

F18-39

3820

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11253

Females

2484

F18-39

2484

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

9992

Females

2004

F18-39

2004

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

9338

Females

1858

F18-39

1858

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

7718

Females

1306

F18-39

1306

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7187

Females

1212

F18-39

1212

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7836

Females

1444

F18-39

1444

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

8541

Females

1816

F18-39

1816

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

8088

Females

1721

F18-39

1721

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7387

Females

1526

F18-39

1526

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6757

Females

1343

F18-39

1343

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6225

Females

1149

F18-39

1149

Passing Analysis

Category:
Athletes Passed
3521
Passed By
939
Net Change
+2582
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12828
5K → 10K203466-263#12828#13091
10K → 15K276164+112#13091#12979
15K → 20K141250-109#12979#13088
20K → Half1093+106#13088#12982
Half → 25K5311+530#12982#12452
25K → 30K6447+637#12452#11815
30K → 20M3511+350#11815#11465
20M → 21M3142+312#11465#11153
21M → 35K1395+134#11153#11019
35K → 23M19210+182#11019#10837
23M → 24M15216+136#10837#10701
24M → 40K1696+163#10701#10538
40K → 25.2M822+80#10538#10458
25.2M → Finish2186+212#10458#10246
TOTALS3521939+2582
📊

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