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BOSTON MARATHON 2025

Janna Lovell

Bib: 20519•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 42%
Masters (Masters Women)
#0 / 6759
Top 28%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:30
Rank: #15566
Start → 5K
7:53/mi
24:30 split
10K· 6.21 mi
49:05
Rank: #15668 (-102)
5K → 10K
7:55/mi
24:35 split
15K· 9.32 mi
1:13:46
Rank: #15629 (+39)
10K → 15K
7:57/mi
24:41 split
20K· 12.43 mi
1:39:20
Rank: #15869 (-240)
15K → 20K
8:14/mi
25:34 split
Half· 13.11 mi
1:44:53
Rank: #15925 (-56)
20K → Half
8:08/mi
5:33 split
25K· 15.53 mi
2:05:12
Rank: #16023 (-98)
Half → 25K
8:23/mi
20:19 split
30K· 18.64 mi
2:32:06
Rank: #15936 (+87)
25K → 30K
8:39/mi
26:54 split
20M
2:44:06
Rank: #15896 (+40)
30K → 20M
8:50/mi
12:00 split
21M
2:53:25
Rank: #15804 (+92)
20M → 21M
9:19/mi
9:19 split
35K· 21.75 mi
2:59:38
Rank: #15722 (+82)
21M → 35K
8:19/mi
6:13 split
23M
3:10:10
Rank: #15500 (+222)
35K → 23M
8:25/mi
10:32 split
24M
3:18:43
Rank: #15470 (+30)
23M → 24M
8:33/mi
8:33 split
40K· 24.85 mi
3:26:10
Rank: #15410 (+60)
24M → 40K
8:43/mi
7:27 split
25.2M
3:29:30
Rank: #15403 (+7)
40K → 25.2M
9:40/mi
3:20 split
Finish· 26.22 mi
3:38:17
Rank: #15437 (-34)
25.2M → Finish
8:37/mi
8:47 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:53
Pace8:00 /mi
2nd Half
Distance13.11 mi
Time1:53:24
Pace8:39 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4424:307:5324:30
7:53
-
10K
6.21 mi11:43:1949:057:5424:35
7:55
+0:02
15K
9.32 mi12:08:001:13:467:5524:41
7:57
+0:02
20K
12.43 mi12:33:341:39:208:0025:34
8:14
+0:17
Half
13.11 mi12:39:071:44:538:005:33
8:08
-0:06
25K
15.53 mi12:59:262:05:128:0420:19
8:23
+0:15
30K
18.64 mi13:26:202:32:068:1026:54
8:39
+0:16
20M
20.00 mi13:38:202:44:068:1212:00
8:50
+0:11
21M
21.00 mi13:47:392:53:258:159:19
9:19
+0:29
35K
21.75 mi13:53:522:59:388:166:13
8:19
-1:00
23M
23.00 mi14:04:243:10:108:1610:32
8:25
+0:06
24M
24.00 mi14:12:573:18:438:178:33
8:33
+0:08
40K
24.85 mi14:20:243:26:108:187:27
8:43
+0:10
25.2M
25.20 mi14:23:443:29:308:193:20
9:40
+0:57
Finish
26.22 mi14:32:313:38:178:208:47
8:37
-1:03

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

7:53 /mi

Average Pace

8:20 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:19

36% of race

Time at Steady Pace

1:46:52

49% of race

Time at Slower Pace

32:06

15% of race

Average Pace: 8:20 /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 mi11:18:4424:307:5324:30
7:53
#15566
10K
6.21 mi11:43:1949:057:5424:35
7:55
#15668
15K
9.32 mi12:08:001:13:467:5524:41
7:57
#15629
20K
12.43 mi12:33:341:39:208:0025:34
8:14
#15869
Half
13.11 mi12:39:071:44:538:005:33
8:08
#15925
25K
15.53 mi12:59:262:05:128:0420:19
8:23
#16023
30K
18.64 mi13:26:202:32:068:1026:54
8:39
#15936
20M
20.00 mi13:38:202:44:068:1212:00
8:50
#15896
21M
21.00 mi13:47:392:53:258:159:19
9:19
#15804
35K
21.75 mi13:53:522:59:388:166:13
8:19
#15722
23M
23.00 mi14:04:243:10:108:1610:32
8:25
#15500
24M
24.00 mi14:12:573:18:438:178:33
8:33
#15470
40K
24.85 mi14:20:243:26:108:187:27
8:43
#15410
25.2M
25.20 mi14:23:443:29:308:193:20
9:40
#15403
Finish
26.22 mi14:32:313:38:178:208:47
8:37
#15437
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi155664873487315633(Top 55%)4926(Top 40%)4926(Top 287%)
10K6.21 mi3.10 mi15668-1024935-624935-6215768(Top 56%)4997(Top 41%)4997(Top 291%)
15K9.32 mi3.11 mi15629+394917+184917+1815633(Top 55%)4926(Top 40%)4926(Top 287%)
20K12.43 mi3.11 mi15869-2405076-1595076-15916497(Top 58%)5486(Top 45%)5486(Top 319%)
Half13.11 mi0.68 mi15925-565106-305106-3016880(Top 59%)5683(Top 46%)5683(Top 331%)
25K15.53 mi2.42 mi16023-985177-715177-7116441(Top 58%)5552(Top 45%)5552(Top 323%)
30K18.64 mi3.11 mi15936+875184-75184-715763(Top 55%)5319(Top 43%)5319(Top 310%)
20M20.00 mi1.36 mi15896+405211-275211-2715856(Top 56%)5503(Top 45%)5503(Top 320%)
21M21.00 mi1.00 mi15804+925194+175194+1715253(Top 54%)5317(Top 43%)5317(Top 309%)
35K21.75 mi0.75 mi15722+825170+245170+2414354(Top 51%)4885(Top 40%)4885(Top 284%)
23M23.00 mi1.25 mi15500+2225070+1005070+10012807(Top 45%)4173(Top 34%)4173(Top 243%)
24M24.00 mi1.00 mi15470+305075-55075-514841(Top 52%)5296(Top 43%)5296(Top 308%)
40K24.85 mi0.85 mi15410+605075507514718(Top 52%)5372(Top 44%)5372(Top 313%)
25.2M25.20 mi0.35 mi15403+75083-85083-815491(Top 55%)5815(Top 48%)5815(Top 338%)
Finish26.22 mi1.02 mi15437-345125-425125-4216969(Top 60%)6537(Top 53%)6537(Top 381%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

15633

Females

4926

F40-44

4926

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

15768

Females

4997

F40-44

4997

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

15633

Females

4926

F40-44

4926

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

16497

Females

5486

F40-44

5486

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16880

Females

5683

F40-44

5683

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

16441

Females

5552

F40-44

5552

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

15763

Females

5319

F40-44

5319

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

15856

Females

5503

F40-44

5503

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

15253

Females

5317

F40-44

5317

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

14354

Females

4885

F40-44

4885

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12807

Females

4173

F40-44

4173

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

14841

Females

5296

F40-44

5296

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14718

Females

5372

F40-44

5372

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15491

Females

5815

F40-44

5815

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

16969

Females

6537

F40-44

6537

Passing Analysis

Category:
Athletes Passed
1946
Passed By
1817
Net Change
+129
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15566
5K → 10K273375-102#15566#15668
10K → 15K226187+39#15668#15629
15K → 20K133373-240#15629#15869
20K → Half1874-56#15869#15925
Half → 25K140238-98#15925#16023
25K → 30K268181+87#16023#15936
30K → 20M12888+40#15936#15896
20M → 21M16270+92#15896#15804
21M → 35K10523+82#15804#15722
35K → 23M23513+222#15722#15500
23M → 24M8151+30#15500#15470
24M → 40K9838+60#15470#15410
40K → 25.2M3023+7#15410#15403
25.2M → Finish4983-34#15403#15437
TOTALS19461817+129
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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