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BOSTON MARATHON 2024

Sara Johnson

Bib: 21888•F

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F50-54)
#0 / 1187
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
8:38/mi
53:06
↑ 79↓ 1380.4%
15K· 9.32 mi
9:03/mi
1:21:13
↑ 67↓ 78
20K· 12.43 mi
10:07/mi
1:52:38
↑ 106↓ 860.1%
Half· 13.11 mi
10:07/mi
1:59:32
↑ 19↓ 370.5%
25K· 15.53 mi
10:42/mi
2:25:28
↑ 66↓ 880.2%
30K· 18.64 mi
10:32/mi
2:58:12
↑ 181↓ 1480.2%
20M
10:39/mi
3:12:41
↑ 64↓ 500.2%
21M
11:54/mi
3:24:35
↑ 106↓ 241.6%
35K· 21.75 mi
10:16/mi
3:32:16
↑ 17↓ 861.7%
23M
10:49/mi
3:45:49
↑ 23↓ 630.6%
24M
10:40/mi
3:56:29
↓ 821.3%
40K· 24.85 mi
10:58/mi
4:05:52
↓ 200.3%
25.2M
12:25/mi
4:10:09
↑ 13↓ 160.2%
Finish· 26.22 mi
10:12/mi
4:20:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:32
Pace9:07 /mi
2nd Half
Distance13.11 mi
Time2:21:01
Pace10:45 /mi
📊Positive Split: 18.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:0326:188:2826:18
8:28
-
10K
6.21 mi11:48:5153:068:3326:48
8:38
+0:10
15K
9.32 mi12:16:581:21:138:4328:07
9:03
+0:25
20K
12.43 mi12:48:231:52:389:0431:25
10:07
+1:04
Half
13.11 mi12:55:171:59:329:076:54
10:07
0:00
25K
15.53 mi13:21:132:25:289:2225:56
10:42
+0:35
30K
18.64 mi13:53:572:58:129:3432:44
10:32
-0:10
20M
20.00 mi14:08:263:12:419:3814:29
10:39
+0:07
21M
21.00 mi14:20:203:24:359:4511:54
11:54
+1:15
35K
21.75 mi14:28:013:32:169:467:41
10:16
-1:38
23M
23.00 mi14:41:343:45:499:4913:33
10:49
+0:33
24M
24.00 mi14:52:143:56:299:5110:40
10:40
-0:09
40K
24.85 mi15:01:374:05:529:549:23
10:58
+0:18
25.2M
25.20 mi15:05:544:10:099:564:17
12:25
+1:27
Finish
26.22 mi15:16:184:20:339:5710:24
10:12
-2:13

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

8:28 /mi

Average Pace

9:57 /mi

Slowest Pace

12:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:13

31% of race

Time at Steady Pace

2:43:09

63% of race

Time at Slower Pace

16:11

6% of race

Average Pace: 9:56 /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 mi11:22:0326:188:2826:18
8:28
#17591
10K
6.21 mi11:48:5153:068:3326:48
8:38
#17791
15K
9.32 mi12:16:581:21:138:4328:07
9:03
#18241
20K
12.43 mi12:48:231:52:389:0431:25
10:07
#19240
Half
13.11 mi12:55:171:59:329:076:54
10:07
#19410
25K
15.53 mi13:21:132:25:289:2225:56
10:42
#19733
30K
18.64 mi13:53:572:58:129:3432:44
10:32
#19543
20M
20.00 mi14:08:263:12:419:3814:29
10:39
#19446
21M
21.00 mi14:20:203:24:359:4511:54
11:54
#19374
35K
21.75 mi14:28:013:32:169:467:41
10:16
#19310
23M
23.00 mi14:41:343:45:499:4913:33
10:49
#19196
24M
24.00 mi14:52:143:56:299:5110:40
10:40
#19139
40K
24.85 mi15:01:374:05:529:549:23
10:58
#19075
25.2M
25.20 mi15:05:544:10:099:564:17
12:25
#19051
Finish
26.22 mi15:16:184:20:339:5710:24
10:12
#19034
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi175916523652319130(Top 75%)7316(Top 67%)7316(Top 616%)
10K6.21 mi3.10 mi17791-2006611-886611-8818006(Top 70%)6735(Top 62%)6735(Top 567%)
15K9.32 mi3.11 mi18241-4506875-2646875-26419130(Top 75%)7316(Top 67%)7316(Top 616%)
20K12.43 mi3.11 mi19240-9997433-5587433-55820819(Top 81%)8250(Top 76%)8250(Top 695%)
Half13.11 mi0.68 mi19410-1707518-857518-8521762(Top 85%)8821(Top 81%)8821(Top 743%)
25K15.53 mi2.42 mi19733-3237707-1897707-18920872(Top 82%)8402(Top 77%)8402(Top 708%)
30K18.64 mi3.11 mi19543+1907661+467661+4618882(Top 74%)7515(Top 69%)7515(Top 633%)
20M20.00 mi1.36 mi19446+977642+197642+1918469(Top 72%)7440(Top 68%)7440(Top 627%)
21M21.00 mi1.00 mi19374+727626+167626+1618586(Top 73%)7619(Top 70%)7619(Top 642%)
35K21.75 mi0.75 mi19310+647604+227604+2217962(Top 70%)7323(Top 67%)7323(Top 617%)
23M23.00 mi1.25 mi19196+1147560+447560+4417921(Top 70%)7379(Top 68%)7379(Top 622%)
24M24.00 mi1.00 mi19139+577551+97551+918340(Top 72%)7634(Top 70%)7634(Top 643%)
40K24.85 mi0.85 mi19075+647538+137538+1318017(Top 71%)7507(Top 69%)7507(Top 632%)
25.2M25.20 mi0.35 mi19051+247533+57533+518364(Top 72%)7705(Top 71%)7705(Top 649%)
Finish26.22 mi1.02 mi19034+177541-87541-819112(Top 75%)8026(Top 73%)8026(Top 676%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

19130

Females

7316

F50-54

7316

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

18006

Females

6735

F50-54

6735

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

19130

Females

7316

F50-54

7316

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

20819

Females

8250

F50-54

8250

20K→Half

12.4 - 13.1 mi

Top 85%
×2story building
+19ft-37ft

Overall

21762

Females

8821

F50-54

8821

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

20872

Females

8402

F50-54

8402

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

18882

Females

7515

F50-54

7515

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

18469

Females

7440

F50-54

7440

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

18586

Females

7619

F50-54

7619

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

17962

Females

7323

F50-54

7323

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

17921

Females

7379

F50-54

7379

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

18340

Females

7634

F50-54

7634

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

18017

Females

7507

F50-54

7507

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

18364

Females

7705

F50-54

7705

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

19112

Females

8026

F50-54

8026

Passing Analysis

Category:
Athletes Passed
1559
Passed By
3002
Net Change
-1443
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17591
5K → 10K211411-200#17591#17791
10K → 15K110560-450#17791#18241
15K → 20K661065-999#18241#19240
20K → Half5175-170#19240#19410
Half → 25K99422-323#19410#19733
25K → 30K290100+190#19733#19543
30K → 20M13437+97#19543#19446
20M → 21M11341+72#19446#19374
21M → 35K9127+64#19374#19310
35K → 23M14935+114#19310#19196
23M → 24M9235+57#19196#19139
24M → 40K9430+64#19139#19075
40K → 25.2M3915+24#19075#19051
25.2M → Finish6649+17#19051#19034
TOTALS15593002-1443
📊

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