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BOSTON MARATHON 2025

Lorna Tan-Friederich

Bib: 22254•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:39
Rank: #22002
Start → 5K
27:39 | 8:54/mi
10K· 6.21 mi
56:00
Rank: #22482 (-480)
5K → 10K
28:21 | 9:07/mi
15K· 9.32 mi
1:24:35
Rank: #22602 (-120)
10K → 15K
28:35 | 9:12/mi
20K· 12.43 mi
1:54:15
Rank: #22755 (-153)
15K → 20K
29:40 | 9:33/mi
Half· 13.11 mi
2:00:44
Rank: #22814 (-59)
20K → Half
6:29 | 9:30/mi
25K· 15.53 mi
2:24:19
Rank: #22753 (+61)
Half → 25K
23:35 | 9:44/mi
30K· 18.64 mi
2:56:19
Rank: #22681 (+72)
25K → 30K
32:00 | 10:18/mi
20M
3:10:26
Rank: #22629 (+52)
30K → 20M
14:07 | 10:23/mi
21M
3:22:00
Rank: #22622 (+7)
20M → 21M
11:34 | 11:34/mi
35K· 21.75 mi
3:29:42
Rank: #22602 (+20)
21M → 35K
7:42 | 10:18/mi
23M
3:42:43
Rank: #22550 (+52)
35K → 23M
13:01 | 10:24/mi
24M
3:52:19
Rank: #22426 (+124)
23M → 24M
9:36 | 9:36/mi
40K· 24.85 mi
4:00:57
Rank: #22356 (+70)
24M → 40K
8:38 | 10:06/mi
25.2M
4:04:48
Rank: #22335 (+21)
40K → 25.2M
3:51 | 11:10/mi
Finish· 26.22 mi
4:14:28
Rank: #22285 (+50)
25.2M → Finish
9:40 | 9:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:44
Pace9:13 /mi
2nd Half
Distance13.11 mi
Time2:13:44
Pace10:12 /mi
📊Positive Split: 10.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:3527:398:5427:39
8:54
-
10K
6.21 mi11:50:5656:009:0128:21
9:07
+0:13
15K
9.32 mi12:19:311:24:359:0428:35
9:12
+0:05
20K
12.43 mi12:49:111:54:159:1229:40
9:33
+0:21
Half
13.11 mi12:55:402:00:449:136:29
9:30
-0:03
25K
15.53 mi13:19:152:24:199:1723:35
9:44
+0:14
30K
18.64 mi13:51:152:56:199:2832:00
10:18
+0:34
20M
20.00 mi14:05:223:10:269:3114:07
10:23
+0:05
21M
21.00 mi14:16:563:22:009:3711:34
11:34
+1:11
35K
21.75 mi14:24:383:29:429:397:42
10:18
-1:16
23M
23.00 mi14:37:393:42:439:4113:01
10:24
+0:06
24M
24.00 mi14:47:153:52:199:419:36
9:36
-0:48
40K
24.85 mi14:55:534:00:579:428:38
10:06
+0:30
25.2M
25.20 mi14:59:444:04:489:433:51
11:10
+1:04
Finish
26.22 mi15:09:244:14:289:439:40
9:29
-1:41

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

8:54 /mi

Average Pace

9:43 /mi

Slowest Pace

11:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:35

33% of race

Time at Steady Pace

1:19:00

31% of race

Time at Slower Pace

1:30:53

36% of race

Average Pace: 9:42 /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 mi11:22:3527:398:5427:39
8:54
#22002
10K
6.21 mi11:50:5656:009:0128:21
9:07
#22482
15K
9.32 mi12:19:311:24:359:0428:35
9:12
#22602
20K
12.43 mi12:49:111:54:159:1229:40
9:33
#22755
Half
13.11 mi12:55:402:00:449:136:29
9:30
#22814
25K
15.53 mi13:19:152:24:199:1723:35
9:44
#22753
30K
18.64 mi13:51:152:56:199:2832:00
10:18
#22681
20M
20.00 mi14:05:223:10:269:3114:07
10:23
#22629
21M
21.00 mi14:16:563:22:009:3711:34
11:34
#22622
35K
21.75 mi14:24:383:29:429:397:42
10:18
#22602
23M
23.00 mi14:37:393:42:439:4113:01
10:24
#22550
24M
24.00 mi14:47:153:52:199:419:36
9:36
#22426
40K
24.85 mi14:55:534:00:579:428:38
10:06
#22356
25.2M
25.20 mi14:59:444:04:489:433:51
11:10
#22335
Finish
26.22 mi15:09:244:14:289:439:40
9:29
#22285
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi220028624862422865(Top 80%)9027(Top 74%)9027(Top 693%)
10K6.21 mi3.10 mi22482-4808879-2558879-25522917(Top 81%)9083(Top 74%)9083(Top 697%)
15K9.32 mi3.11 mi22602-1208913-348913-3422865(Top 80%)9027(Top 74%)9027(Top 693%)
20K12.43 mi3.11 mi22755-1538986-738986-7323053(Top 81%)9178(Top 75%)9178(Top 704%)
Half13.11 mi0.68 mi22814-599020-349020-3423586(Top 83%)9473(Top 77%)9473(Top 727%)
25K15.53 mi2.42 mi22753+619006+149006+1422566(Top 79%)8965(Top 73%)8965(Top 688%)
30K18.64 mi3.11 mi22681+729007-19007-122455(Top 79%)9026(Top 74%)9026(Top 693%)
20M20.00 mi1.36 mi22629+529004+39004+322124(Top 78%)8968(Top 73%)8968(Top 688%)
21M21.00 mi1.00 mi22622+79015-119015-1122755(Top 80%)9371(Top 77%)9371(Top 719%)
35K21.75 mi0.75 mi22602+209020-59020-522680(Top 80%)9379(Top 77%)9379(Top 720%)
23M23.00 mi1.25 mi22550+529012+89012+821732(Top 77%)8936(Top 73%)8936(Top 686%)
24M24.00 mi1.00 mi22426+1248969+438969+4320019(Top 70%)8101(Top 66%)8101(Top 622%)
40K24.85 mi0.85 mi22356+708956+138956+1320790(Top 73%)8559(Top 70%)8559(Top 657%)
25.2M25.20 mi0.35 mi22335+218948+88948+821163(Top 75%)8746(Top 72%)8746(Top 671%)
Finish26.22 mi1.02 mi22285+508941+78941+721148(Top 74%)8734(Top 71%)8734(Top 670%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

22865

Females

9027

F50-54

9027

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

22917

Females

9083

F50-54

9083

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

22865

Females

9027

F50-54

9027

15K→20K

9.3 - 12.4 mi

Top 81%
×5stories
+106ft-86ft

Overall

23053

Females

9178

F50-54

9178

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

23586

Females

9473

F50-54

9473

Half→25K

13.1 - 15.5 mi

Top 79%
×4stories
+66ft-88ft

Overall

22566

Females

8965

F50-54

8965

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

22455

Females

9026

F50-54

9026

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

22124

Females

8968

F50-54

8968

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

22755

Females

9371

F50-54

9371

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

22680

Females

9379

F50-54

9379

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

21732

Females

8936

F50-54

8936

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

20019

Females

8101

F50-54

8101

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20790

Females

8559

F50-54

8559

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21163

Females

8746

F50-54

8746

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

21148

Females

8734

F50-54

8734

Passing Analysis

Category:
Athletes Passed
1374
Passed By
1657
Net Change
-283
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22002
5K → 10K101581-480#22002#22482
10K → 15K141261-120#22482#22602
15K → 20K132285-153#22602#22755
20K → Half1978-59#22755#22814
Half → 25K166105+61#22814#22753
25K → 30K192120+72#22753#22681
30K → 20M9644+52#22681#22629
20M → 21M8073+7#22629#22622
21M → 35K5232+20#22622#22602
35K → 23M9341+52#22602#22550
23M → 24M1317+124#22550#22426
24M → 40K788+70#22426#22356
40K → 25.2M276+21#22356#22335
25.2M → Finish6616+50#22335#22285
TOTALS13741657-283
📊

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