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BOSTON MARATHON 2023

Rebecca Ivester

Bib: 14204•F

VA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 38%
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
7:55/mi
24:36
↑ 97↓ 3451.5%
10K· 6.21 mi
7:52/mi
49:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:48/mi
1:13:14
↑ 67↓ 78
20K· 12.43 mi
7:56/mi
1:37:54
↑ 106↓ 860.1%
Half· 13.11 mi
7:56/mi
1:43:19
↑ 19↓ 370.5%
25K· 15.53 mi
8:02/mi
2:02:47
↑ 66↓ 880.2%
30K· 18.64 mi
8:18/mi
2:28:33
↑ 181↓ 1480.2%
20M
8:31/mi
2:40:08
↑ 64↓ 500.2%
21M
9:09/mi
2:49:17
↑ 106↓ 241.6%
35K· 21.75 mi
8:35/mi
2:55:42
↑ 17↓ 861.7%
23M
8:58/mi
3:06:56
↑ 23↓ 630.6%
24M
9:05/mi
3:16:01
↓ 821.3%
40K· 24.85 mi
9:14/mi
3:23:55
↓ 200.3%
25.2M
9:43/mi
3:27:16
↑ 13↓ 160.2%
Finish· 26.22 mi
8:57/mi
3:36:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:19
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:53:04
Pace8:38 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:3824:367:5524:36
7:55
-
10K
6.21 mi11:18:0349:017:5324:25
7:52
-0:03
15K
9.32 mi11:42:161:13:147:5124:13
7:48
-0:04
20K
12.43 mi12:06:561:37:547:5324:40
7:56
+0:08
Half
13.11 mi12:12:211:43:197:535:25
7:56
0:00
25K
15.53 mi12:31:492:02:477:5419:28
8:02
+0:06
30K
18.64 mi12:57:352:28:337:5825:46
8:18
+0:16
20M
20.00 mi13:09:102:40:088:0011:35
8:31
+0:13
21M
21.00 mi13:18:192:49:178:049:09
9:09
+0:38
35K
21.75 mi13:24:442:55:428:056:25
8:35
-0:34
23M
23.00 mi13:35:583:06:568:0811:14
8:58
+0:23
24M
24.00 mi13:45:033:16:018:109:05
9:05
+0:07
40K
24.85 mi13:52:573:23:558:127:54
9:14
+0:09
25.2M
25.20 mi13:56:183:27:168:133:21
9:43
+0:29
Finish
26.22 mi14:05:253:36:238:169:07
8:57
-0:46

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

7:48 /mi

Average Pace

8:16 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:47

57% of race

Time at Steady Pace

43:46

20% of race

Time at Slower Pace

49:50

23% of race

Average Pace: 8:15 /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 mi10:53:3824:367:5524:36
7:55
#13415
10K
6.21 mi11:18:0349:017:5324:25
7:52
#13504
15K
9.32 mi11:42:161:13:147:5124:13
7:48
#13206
20K
12.43 mi12:06:561:37:547:5324:40
7:56
#13113
Half
13.11 mi12:12:211:43:197:535:25
7:56
#13148
25K
15.53 mi12:31:492:02:477:5419:28
8:02
#13082
30K
18.64 mi12:57:352:28:337:5825:46
8:18
#13060
20M
20.00 mi13:09:102:40:088:0011:35
8:31
#13104
21M
21.00 mi13:18:192:49:178:049:09
9:09
#13140
35K
21.75 mi13:24:442:55:428:056:25
8:35
#13248
23M
23.00 mi13:35:583:06:568:0811:14
8:58
#13419
24M
24.00 mi13:45:033:16:018:109:05
9:05
#13638
40K
24.85 mi13:52:573:23:558:127:54
9:14
#13801
25.2M
25.20 mi13:56:183:27:168:133:21
9:43
#13841
Finish
26.22 mi14:05:253:36:238:169:07
8:57
#14025
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi134153677367712710(Top 48%)3299(Top 29%)3299(Top 68%)
10K6.21 mi3.10 mi13504-893740-633740-6313655(Top 51%)3829(Top 34%)3829(Top 78%)
15K9.32 mi3.11 mi13206+2983582+1583582+15812710(Top 48%)3299(Top 29%)3299(Top 68%)
20K12.43 mi3.11 mi13113+933554+283554+2812962(Top 49%)3531(Top 31%)3531(Top 72%)
Half13.11 mi0.68 mi13148-353571-173571-1713954(Top 52%)4063(Top 36%)4063(Top 83%)
25K15.53 mi2.42 mi13082+663539+323539+3212999(Top 49%)3632(Top 32%)3632(Top 74%)
30K18.64 mi3.11 mi13060+223588-493588-4913009(Top 49%)3768(Top 33%)3768(Top 77%)
20M20.00 mi1.36 mi13104-443628-403628-4013786(Top 52%)4285(Top 38%)4285(Top 88%)
21M21.00 mi1.00 mi13140-363661-333661-3314228(Top 53%)4605(Top 40%)4605(Top 94%)
35K21.75 mi0.75 mi13248-1083743-823743-8215737(Top 59%)5532(Top 48%)5532(Top 113%)
23M23.00 mi1.25 mi13419-1713864-1213864-12115913(Top 60%)5683(Top 50%)5683(Top 116%)
24M24.00 mi1.00 mi13638-2194026-1624026-16217592(Top 66%)6676(Top 58%)6676(Top 137%)
40K24.85 mi0.85 mi13801-1634146-1204146-12017274(Top 65%)6546(Top 57%)6546(Top 134%)
25.2M25.20 mi0.35 mi13841-404180-344180-3416187(Top 61%)5954(Top 52%)5954(Top 122%)
Finish26.22 mi1.02 mi14025-1844313-1334313-13317708(Top 67%)6752(Top 59%)6752(Top 138%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

12710

Females

3299

F18-39

3299

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13655

Females

3829

F18-39

3829

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

12710

Females

3299

F18-39

3299

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

12962

Females

3531

F18-39

3531

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13954

Females

4063

F18-39

4063

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

12999

Females

3632

F18-39

3632

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13009

Females

3768

F18-39

3768

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

13786

Females

4285

F18-39

4285

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14228

Females

4605

F18-39

4605

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

15737

Females

5532

F18-39

5532

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

15913

Females

5683

F18-39

5683

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

17592

Females

6676

F18-39

6676

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17274

Females

6546

F18-39

6546

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16187

Females

5954

F18-39

5954

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

17708

Females

6752

F18-39

6752

Passing Analysis

Category:
Athletes Passed
1586
Passed By
2196
Net Change
-610
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13415
5K → 10K261350-89#13415#13504
10K → 15K38284+298#13504#13206
15K → 20K224131+93#13206#13113
20K → Half2560-35#13113#13148
Half → 25K176110+66#13148#13082
25K → 30K200178+22#13082#13060
30K → 20M69113-44#13060#13104
20M → 21M82118-36#13104#13140
21M → 35K28136-108#13140#13248
35K → 23M46217-171#13248#13419
23M → 24M26245-219#13419#13638
24M → 40K27190-163#13638#13801
40K → 25.2M1656-40#13801#13841
25.2M → Finish24208-184#13841#14025
TOTALS15862196-610
📊

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