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BOSTON MARATHON 2025

Nora Johnson

Bib: 27151•F

MA

0:00
0:00
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
28:54
Rank: #23552
Start → 5K
28:54 | 9:18/mi
10K· 6.21 mi
56:03
Rank: #22505 (+1047)
5K → 10K
27:09 | 8:44/mi
15K· 9.32 mi
1:22:42
Rank: #21666 (+839)
10K → 15K
26:39 | 8:35/mi
20K· 12.43 mi
1:50:04
Rank: #21206 (+460)
15K → 20K
27:22 | 8:49/mi
Half· 13.11 mi
1:56:10
Rank: #21227 (-21)
20K → Half
6:06 | 8:56/mi
25K· 15.53 mi
2:18:03
Rank: #21031 (+196)
Half → 25K
21:53 | 9:02/mi
30K· 18.64 mi
2:46:52
Rank: #20635 (+396)
25K → 30K
28:49 | 9:17/mi
20M
2:59:20
Rank: #20398 (+237)
30K → 20M
12:28 | 9:10/mi
21M
3:09:02
Rank: #20211 (+187)
20M → 21M
9:42 | 9:42/mi
35K· 21.75 mi
3:16:05
Rank: #20193 (+18)
21M → 35K
7:03 | 9:25/mi
23M
3:27:50
Rank: #20095 (+98)
35K → 23M
11:45 | 9:23/mi
24M
3:37:08
Rank: #20038 (+57)
23M → 24M
9:18 | 9:18/mi
40K· 24.85 mi
3:45:10
Rank: #19972 (+66)
24M → 40K
8:02 | 9:24/mi
25.2M
3:48:46
Rank: #19945 (+27)
40K → 25.2M
3:36 | 10:26/mi
Finish· 26.22 mi
3:57:12
Rank: #19783 (+162)
25.2M → Finish
8:26 | 8:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:10
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:01:02
Pace9:14 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:1928:549:1828:54
9:18
-
10K
6.21 mi12:18:2856:039:0127:09
8:44
-0:34
15K
9.32 mi12:45:071:22:428:5226:39
8:35
-0:09
20K
12.43 mi13:12:291:50:048:5127:22
8:49
+0:14
Half
13.11 mi13:18:351:56:108:526:06
8:56
+0:07
25K
15.53 mi13:40:282:18:038:5321:53
9:02
+0:06
30K
18.64 mi14:09:172:46:528:5728:49
9:17
+0:15
20M
20.00 mi14:21:452:59:208:5812:28
9:10
-0:07
21M
21.00 mi14:31:273:09:029:009:42
9:42
+0:32
35K
21.75 mi14:38:303:16:059:017:03
9:25
-0:17
23M
23.00 mi14:50:153:27:509:0211:45
9:23
-0:02
24M
24.00 mi14:59:333:37:089:039:18
9:18
-0:05
40K
24.85 mi15:07:353:45:109:048:02
9:24
+0:06
25.2M
25.20 mi15:11:113:48:469:053:36
10:26
+1:02
Finish
26.22 mi15:19:373:57:129:038:26
8:17
-2:09

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

8:17 /mi

Average Pace

9:03 /mi

Slowest Pace

10:26 /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

1:57:35

50% of race

Time at Steady Pace

1:46:19

45% of race

Time at Slower Pace

13:18

6% of race

Average Pace: 9:03 /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 mi11:51:1928:549:1828:54
9:18
#23552
10K
6.21 mi12:18:2856:039:0127:09
8:44
#22505
15K
9.32 mi12:45:071:22:428:5226:39
8:35
#21666
20K
12.43 mi13:12:291:50:048:5127:22
8:49
#21206
Half
13.11 mi13:18:351:56:108:526:06
8:56
#21227
25K
15.53 mi13:40:282:18:038:5321:53
9:02
#21031
30K
18.64 mi14:09:172:46:528:5728:49
9:17
#20635
20M
20.00 mi14:21:452:59:208:5812:28
9:10
#20398
21M
21.00 mi14:31:273:09:029:009:42
9:42
#20211
35K
21.75 mi14:38:303:16:059:017:03
9:25
#20193
23M
23.00 mi14:50:153:27:509:0211:45
9:23
#20095
24M
24.00 mi14:59:333:37:089:039:18
9:18
#20038
40K
24.85 mi15:07:353:45:109:048:02
9:24
#19972
25.2M
25.20 mi15:11:113:48:469:053:36
10:26
#19945
Finish
26.22 mi15:19:373:57:129:038:26
8:17
#19783
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi235529464946419781(Top 70%)7323(Top 60%)7323(Top 134%)
10K6.21 mi3.10 mi22505+10478894+5708894+57021090(Top 74%)8073(Top 66%)8073(Top 148%)
15K9.32 mi3.11 mi21666+8398410+4848410+48419781(Top 70%)7323(Top 60%)7323(Top 134%)
20K12.43 mi3.11 mi21206+4608147+2638147+26319963(Top 70%)7464(Top 61%)7464(Top 136%)
Half13.11 mi0.68 mi21227-218157-108157-1021526(Top 76%)8337(Top 68%)8337(Top 152%)
25K15.53 mi2.42 mi21031+1968057+1008057+10020007(Top 70%)7543(Top 62%)7543(Top 138%)
30K18.64 mi3.11 mi20635+3967893+1647893+16418988(Top 67%)7115(Top 58%)7115(Top 130%)
20M20.00 mi1.36 mi20398+2377780+1137780+11317634(Top 62%)6496(Top 53%)6496(Top 119%)
21M21.00 mi1.00 mi20211+1877701+797701+7916992(Top 60%)6263(Top 51%)6263(Top 115%)
35K21.75 mi0.75 mi20193+187703-27703-220005(Top 70%)7994(Top 65%)7994(Top 146%)
23M23.00 mi1.25 mi20095+987679+247679+2418137(Top 64%)7060(Top 58%)7060(Top 129%)
24M24.00 mi1.00 mi20038+577662+177662+1718786(Top 66%)7442(Top 61%)7442(Top 136%)
40K24.85 mi0.85 mi19972+667643+197643+1918223(Top 64%)7245(Top 59%)7245(Top 132%)
25.2M25.20 mi0.35 mi19945+277638+57638+518695(Top 66%)7504(Top 61%)7504(Top 137%)
Finish26.22 mi1.02 mi19783+1627562+767562+7614722(Top 52%)5341(Top 44%)5341(Top 98%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

19781

Females

7323

F18-39

7323

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

21090

Females

8073

F18-39

8073

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

19781

Females

7323

F18-39

7323

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

19963

Females

7464

F18-39

7464

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

21526

Females

8337

F18-39

8337

Half→25K

13.1 - 15.5 mi

Top 70%
×4stories
+66ft-88ft

Overall

20007

Females

7543

F18-39

7543

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

18988

Females

7115

F18-39

7115

30K→20M

18.6 - 20.0 mi

Top 62%
×5stories
+64ft-50ft

Overall

17634

Females

6496

F18-39

6496

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

16992

Females

6263

F18-39

6263

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

20005

Females

7994

F18-39

7994

35K→23M

21.8 - 23.0 mi

Top 64%
×5stories
+23ft-63ft

Overall

18137

Females

7060

F18-39

7060

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

18786

Females

7442

F18-39

7442

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18223

Females

7245

F18-39

7245

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

18695

Females

7504

F18-39

7504

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

14722

Females

5341

F18-39

5341

Passing Analysis

Category:
Athletes Passed
4137
Passed By
368
Net Change
+3769
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23552
5K → 10K105811+1047#23552#22505
10K → 15K85112+839#22505#21666
15K → 20K48626+460#21666#21206
20K → Half2445-21#21206#21227
Half → 25K24044+196#21227#21031
25K → 30K44347+396#21031#20635
30K → 20M2469+237#20635#20398
20M → 21M20013+187#20398#20211
21M → 35K6547+18#20211#20193
35K → 23M12224+98#20193#20095
23M → 24M9639+57#20095#20038
24M → 40K8822+66#20038#19972
40K → 25.2M4720+27#19972#19945
25.2M → Finish1719+162#19945#19783
TOTALS4137368+3769
📊

Passing Visuals

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing