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BOSTON MARATHON 2023

Jennifer Rivera

Bib: 20638•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 46%
Masters (Masters Women)
#0 / 6539
Top 34%
Division (F45-49)
#0 / 1817
Top 40%
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
8:28/mi
26:18
↑ 97↓ 3451.5%
10K· 6.21 mi
8:26/mi
52:29
↑ 79↓ 1380.4%
15K· 9.32 mi
8:20/mi
1:18:21
↑ 67↓ 78
20K· 12.43 mi
8:19/mi
1:44:12
↑ 106↓ 860.1%
Half· 13.11 mi
8:14/mi
1:49:49
↑ 19↓ 370.5%
25K· 15.53 mi
8:24/mi
2:10:11
↑ 66↓ 880.2%
30K· 18.64 mi
8:45/mi
2:37:23
↑ 181↓ 1480.2%
20M
8:40/mi
2:49:10
↑ 64↓ 500.2%
21M
9:17/mi
2:58:27
↑ 106↓ 241.6%
35K· 21.75 mi
8:16/mi
3:04:38
↑ 17↓ 861.7%
23M
8:34/mi
3:15:22
↑ 23↓ 630.6%
24M
8:13/mi
3:23:35
↓ 821.3%
40K· 24.85 mi
8:21/mi
3:30:43
↓ 200.3%
25.2M
8:54/mi
3:33:47
↑ 13↓ 160.2%
Finish· 26.22 mi
8:19/mi
3:42:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:49
Pace8:23 /mi
2nd Half
Distance13.11 mi
Time1:52:26
Pace8:35 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:3126:188:2826:18
8:28
-
10K
6.21 mi11:44:4252:298:2726:11
8:26
-0:02
15K
9.32 mi12:10:341:18:218:2425:52
8:20
-0:06
20K
12.43 mi12:36:251:44:128:2325:51
8:19
-0:01
Half
13.11 mi12:42:021:49:498:235:37
8:14
-0:05
25K
15.53 mi13:02:242:10:118:2320:22
8:24
+0:10
30K
18.64 mi13:29:362:37:238:2727:12
8:45
+0:21
20M
20.00 mi13:41:232:49:108:2711:47
8:40
-0:05
21M
21.00 mi13:50:402:58:278:309:17
9:17
+0:37
35K
21.75 mi13:56:513:04:388:296:11
8:16
-1:01
23M
23.00 mi14:07:353:15:228:3010:44
8:34
+0:18
24M
24.00 mi14:15:483:23:358:298:13
8:13
-0:21
40K
24.85 mi14:22:563:30:438:297:08
8:21
+0:08
25.2M
25.20 mi14:26:003:33:478:293:04
8:54
+0:33
Finish
26.22 mi14:34:283:42:158:298:28
8:19
-0:35

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

8:13 /mi

Average Pace

8:29 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:32:58

96% of race

Time at Steady Pace

9:17

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:29 /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 mi11:18:3126:188:2826:18
8:28
#17321
10K
6.21 mi11:44:4252:298:2726:11
8:26
#17519
15K
9.32 mi12:10:341:18:218:2425:52
8:20
#17236
20K
12.43 mi12:36:251:44:128:2325:51
8:19
#16824
Half
13.11 mi12:42:021:49:498:235:37
8:14
#16805
25K
15.53 mi13:02:242:10:118:2320:22
8:24
#16612
30K
18.64 mi13:29:362:37:238:2727:12
8:45
#16425
20M
20.00 mi13:41:232:49:108:2711:47
8:40
#16276
21M
21.00 mi13:50:402:58:278:309:17
9:17
#16177
35K
21.75 mi13:56:513:04:388:296:11
8:16
#16069
23M
23.00 mi14:07:353:15:228:3010:44
8:34
#15921
24M
24.00 mi14:15:483:23:358:298:13
8:13
#15756
40K
24.85 mi14:22:563:30:438:297:08
8:21
#15638
25.2M
25.20 mi14:26:003:33:478:293:04
8:54
#15581
Finish
26.22 mi14:34:283:42:158:298:28
8:19
#15505
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi173216140614016702(Top 63%)5730(Top 50%)5730(Top 315%)
10K6.21 mi3.10 mi17519-1986234-946234-9417775(Top 67%)6352(Top 56%)6352(Top 350%)
15K9.32 mi3.11 mi17236+2836056+1786056+17816702(Top 63%)5730(Top 50%)5730(Top 315%)
20K12.43 mi3.11 mi16824+4125818+2385818+23815743(Top 59%)5188(Top 45%)5188(Top 286%)
Half13.11 mi0.68 mi16805+195801+175801+1716067(Top 60%)5335(Top 47%)5335(Top 294%)
25K15.53 mi2.42 mi16612+1935703+985703+9815590(Top 59%)5199(Top 46%)5199(Top 286%)
30K18.64 mi3.11 mi16425+1875644+595644+5915816(Top 59%)5394(Top 47%)5394(Top 297%)
20M20.00 mi1.36 mi16276+1495566+785566+7814706(Top 55%)4833(Top 42%)4833(Top 266%)
21M21.00 mi1.00 mi16177+995522+445522+4414921(Top 56%)5010(Top 44%)5010(Top 276%)
35K21.75 mi0.75 mi16069+1085479+435479+4313956(Top 52%)4547(Top 40%)4547(Top 250%)
23M23.00 mi1.25 mi15921+1485415+645415+6413688(Top 51%)4446(Top 39%)4446(Top 245%)
24M24.00 mi1.00 mi15756+1655338+775338+7712771(Top 48%)4011(Top 35%)4011(Top 221%)
40K24.85 mi0.85 mi15638+1185269+695269+6912388(Top 47%)3888(Top 34%)3888(Top 214%)
25.2M25.20 mi0.35 mi15581+575238+315238+3112031(Top 45%)3769(Top 33%)3769(Top 207%)
Finish26.22 mi1.02 mi15505+765211+275211+2714188(Top 53%)4849(Top 42%)4849(Top 267%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

16702

Females

5730

F45-49

5730

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

17775

Females

6352

F45-49

6352

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

16702

Females

5730

F45-49

5730

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15743

Females

5188

F45-49

5188

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

16067

Females

5335

F45-49

5335

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

15590

Females

5199

F45-49

5199

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

15816

Females

5394

F45-49

5394

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

14706

Females

4833

F45-49

4833

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

14921

Females

5010

F45-49

5010

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

13956

Females

4547

F45-49

4547

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

13688

Females

4446

F45-49

4446

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

12771

Females

4011

F45-49

4011

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12388

Females

3888

F45-49

3888

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12031

Females

3769

F45-49

3769

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

14188

Females

4849

F45-49

4849

Passing Analysis

Category:
Athletes Passed
2627
Passed By
811
Net Change
+1816
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17321
5K → 10K216414-198#17321#17519
10K → 15K36582+283#17519#17236
15K → 20K44634+412#17236#16824
20K → Half3314+19#16824#16805
Half → 25K23037+193#16805#16612
25K → 30K27487+187#16612#16425
30K → 20M16718+149#16425#16276
20M → 21M13940+99#16276#16177
21M → 35K1168+108#16177#16069
35K → 23M16921+148#16069#15921
23M → 24M1738+165#15921#15756
24M → 40K13416+118#15756#15638
40K → 25.2M603+57#15638#15581
25.2M → Finish10529+76#15581#15505
TOTALS2627811+1816
📊

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