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BOSTON MARATHON 2023

Rivers Gross

Bib: 17549•F

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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Age Group (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
30:09
Rank: #22675
Start → 5K
30:09 | 9:42/mi
10K· 6.21 mi
59:37
Rank: #22593 (+82)
5K → 10K
29:28 | 9:29/mi
15K· 9.32 mi
1:29:46
Rank: #22672 (-79)
10K → 15K
30:09 | 9:42/mi
20K· 12.43 mi
1:59:56
Rank: #22557 (+115)
15K → 20K
30:10 | 9:43/mi
Half· 13.11 mi
2:06:17
Rank: #22502 (+55)
20K → Half
6:21 | 9:18/mi
25K· 15.53 mi
2:29:38
Rank: #22296 (+206)
Half → 25K
23:21 | 9:38/mi
30K· 18.64 mi
3:01:24
Rank: #22162 (+134)
25K → 30K
31:46 | 10:13/mi
20M
3:14:47
Rank: #21991 (+171)
30K → 20M
13:23 | 9:51/mi
21M
3:25:29
Rank: #21895 (+96)
20M → 21M
10:42 | 10:42/mi
35K· 21.75 mi
3:33:16
Rank: #21918 (-23)
21M → 35K
7:47 | 10:24/mi
23M
3:48:09
Rank: #22056 (-138)
35K → 23M
14:53 | 11:53/mi
24M
4:00:34
Rank: #22245 (-189)
23M → 24M
12:25 | 12:25/mi
40K· 24.85 mi
4:10:39
Rank: #22314 (-69)
24M → 40K
10:05 | 11:48/mi
25.2M
4:14:42
Rank: #22306 (+8)
40K → 25.2M
4:03 | 11:45/mi
Finish· 26.22 mi
4:25:08
Rank: #22317 (-11)
25.2M → Finish
10:26 | 10:14/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.11 mi
Time2:06:17
Pace9:38 /mi
2nd Half
Distance13.11 mi
Time2:18:51
Pace10:36 /mi
📊Positive Split: 10.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5730:099:4230:09
9:42
-
10K
6.21 mi11:50:2559:379:3629:28
9:29
-0:13
15K
9.32 mi12:20:341:29:469:3830:09
9:42
+0:13
20K
12.43 mi12:50:441:59:569:3930:10
9:43
+0:01
Half
13.11 mi12:57:052:06:179:386:21
9:18
-0:25
25K
15.53 mi13:20:262:29:389:3823:21
9:38
+0:20
30K
18.64 mi13:52:123:01:249:4431:46
10:13
+0:35
20M
20.00 mi14:05:353:14:479:4413:23
9:51
-0:22
21M
21.00 mi14:16:173:25:299:4710:42
10:42
+0:51
35K
21.75 mi14:24:043:33:169:487:47
10:24
-0:18
23M
23.00 mi14:38:573:48:099:5514:53
11:53
+1:29
24M
24.00 mi14:51:224:00:3410:0112:25
12:25
+0:32
40K
24.85 mi15:01:274:10:3910:0510:05
11:48
-0:37
25.2M
25.20 mi15:05:304:14:4210:064:03
11:45
-0:03
Finish
26.22 mi15:15:564:25:0810:0710:26
10:14
-1:31

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

9:18 /mi

Average Pace

10:07 /mi

Slowest Pace

12:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:29:38

56% of race

Time at Steady Pace

1:14:04

28% of race

Time at Slower Pace

41:26

16% of race

Average Pace: 10:07 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:20:5730:099:4230:09
9:42
#22675
10K
6.21 mi11:50:2559:379:3629:28
9:29
#22593
15K
9.32 mi12:20:341:29:469:3830:09
9:42
#22672
20K
12.43 mi12:50:441:59:569:3930:10
9:43
#22557
Half
13.11 mi12:57:052:06:179:386:21
9:18
#22502
25K
15.53 mi13:20:262:29:389:3823:21
9:38
#22296
30K
18.64 mi13:52:123:01:249:4431:46
10:13
#22162
20M
20.00 mi14:05:353:14:479:4413:23
9:51
#21991
21M
21.00 mi14:16:173:25:299:4710:42
10:42
#21895
35K
21.75 mi14:24:043:33:169:487:47
10:24
#21918
23M
23.00 mi14:38:573:48:099:5514:53
11:53
#22056
24M
24.00 mi14:51:224:00:3410:0112:25
12:25
#22245
40K
24.85 mi15:01:274:10:3910:0510:05
11:48
#22314
25.2M
25.20 mi15:05:304:14:4210:064:03
11:45
#22306
Finish
26.22 mi15:15:564:25:0810:0710:26
10:14
#22317
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi226759222922222822(Top 86%)9240(Top 81%)9240(Top 189%)
10K6.21 mi3.10 mi22593+829147+759147+7522476(Top 84%)9077(Top 79%)9077(Top 186%)
15K9.32 mi3.11 mi22672-799173-269173-2622822(Top 86%)9240(Top 81%)9240(Top 189%)
20K12.43 mi3.11 mi22557+1159118+559118+5522198(Top 83%)8910(Top 78%)8910(Top 182%)
Half13.11 mi0.68 mi22502+559095+239095+2321579(Top 81%)8565(Top 75%)8565(Top 175%)
25K15.53 mi2.42 mi22296+2069004+919004+9121240(Top 80%)8408(Top 74%)8408(Top 172%)
30K18.64 mi3.11 mi22162+1348926+788926+7821590(Top 81%)8676(Top 76%)8676(Top 178%)
20M20.00 mi1.36 mi21991+1718842+848842+8420031(Top 75%)7877(Top 69%)7877(Top 161%)
21M21.00 mi1.00 mi21895+968795+478795+4720166(Top 76%)8018(Top 70%)8018(Top 164%)
35K21.75 mi0.75 mi21918-238808-138808-1322208(Top 83%)9164(Top 80%)9164(Top 188%)
23M23.00 mi1.25 mi22056-1388903-958903-9523842(Top 90%)10030(Top 88%)10030(Top 205%)
24M24.00 mi1.00 mi22245-1899015-1129015-11224971(Top 94%)10661(Top 93%)10661(Top 218%)
40K24.85 mi0.85 mi22314-699060-459060-4523630(Top 89%)10008(Top 88%)10008(Top 205%)
25.2M25.20 mi0.35 mi22306+89060906022067(Top 83%)9162(Top 80%)9162(Top 188%)
Finish26.22 mi1.02 mi22317-119073-139073-1322398(Top 84%)9328(Top 82%)9328(Top 191%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

22822

Females

9240

F18-39

9240

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

22476

Females

9077

F18-39

9077

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

22822

Females

9240

F18-39

9240

15K→20K

9.3 - 12.4 mi

Top 83%
×5stories
+106ft-86ft

Overall

22198

Females

8910

F18-39

8910

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

21579

Females

8565

F18-39

8565

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

21240

Females

8408

F18-39

8408

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

21590

Females

8676

F18-39

8676

30K→20M

18.6 - 20.0 mi

Top 75%
×5stories
+64ft-50ft

Overall

20031

Females

7877

F18-39

7877

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

20166

Females

8018

F18-39

8018

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

22208

Females

9164

F18-39

9164

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

23842

Females

10030

F18-39

10030

23M→24M

23.0 - 24.0 mi

Top 94%
×6stories
+12ft-82ft

Overall

24971

Females

10661

F18-39

10661

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

23630

Females

10008

F18-39

10008

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22067

Females

9162

F18-39

9162

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2stories
+22ft-21ft

Overall

22398

Females

9328

F18-39

9328

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1480
Passed By
1122
Net Change
+358
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22675
5K → 10K282200+82#22675#22593
10K → 15K116195-79#22593#22672
15K → 20K19984+115#22672#22557
20K → Half616+55#22557#22502
Half → 25K22115+206#22502#22296
25K → 30K19359+134#22296#22162
30K → 20M1776+171#22162#21991
20M → 21M11519+96#21991#21895
21M → 35K1740-23#21895#21918
35K → 23M24162-138#21918#22056
23M → 24M10199-189#22056#22245
24M → 40K2291-69#22245#22314
40K → 25.2M2214+8#22314#22306
25.2M → Finish2132-11#22306#22317
TOTALS14801122+358
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing