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BOSTON MARATHON 2025

Lori Jo Thomas

Bib: 21884•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 49%
Masters (Masters Women)
#0 / 6759
Top 38%
Division (F45-49)
#0 / 1813
Top 47%
Race Day Weather
50°/40°F
broken 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
8:10/mi
25:22
↑ 97↓ 3451.5%
10K· 6.21 mi
7:59/mi
50:11
↑ 79↓ 1380.4%
15K· 9.32 mi
8:08/mi
1:15:27
↑ 67↓ 78
20K· 12.43 mi
8:21/mi
1:41:24
↑ 106↓ 860.1%
Half· 13.11 mi
8:12/mi
1:47:00
↑ 19↓ 370.5%
25K· 15.53 mi
8:34/mi
2:07:47
↑ 66↓ 880.2%
30K· 18.64 mi
9:00/mi
2:35:46
↑ 181↓ 1480.2%
20M
9:00/mi
2:48:00
↑ 64↓ 500.2%
21M
9:28/mi
2:57:28
↑ 106↓ 241.6%
35K· 21.75 mi
9:12/mi
3:04:21
↑ 17↓ 861.7%
23M
9:05/mi
3:15:43
↑ 23↓ 630.6%
24M
9:05/mi
3:24:48
↓ 821.3%
40K· 24.85 mi
9:11/mi
3:32:39
↓ 200.3%
25.2M
9:43/mi
3:36:00
↑ 13↓ 160.2%
Finish· 26.22 mi
8:14/mi
3:44:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:00
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time1:57:23
Pace8:57 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5325:228:1025:22
8:10
-
10K
6.21 mi11:47:4250:118:0524:49
7:59
-0:11
15K
9.32 mi12:12:581:15:278:0625:16
8:08
+0:09
20K
12.43 mi12:38:551:41:248:1025:57
8:21
+0:13
Half
13.11 mi12:44:311:47:008:105:36
8:12
-0:09
25K
15.53 mi13:05:182:07:478:1420:47
8:34
+0:22
30K
18.64 mi13:33:172:35:468:2127:59
9:00
+0:26
20M
20.00 mi13:45:312:48:008:2412:14
9:00
0:00
21M
21.00 mi13:54:592:57:288:279:28
9:28
+0:28
35K
21.75 mi14:01:523:04:218:296:53
9:12
-0:16
23M
23.00 mi14:13:143:15:438:3111:22
9:05
-0:07
24M
24.00 mi14:22:193:24:488:329:05
9:05
0:00
40K
24.85 mi14:30:103:32:398:337:51
9:11
+0:06
25.2M
25.20 mi14:33:313:36:008:343:21
9:43
+0:32
Finish
26.22 mi14:41:543:44:238:348:23
8:14
-1:29

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

7:59 /mi

Average Pace

8:34 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:10

61% of race

Time at Steady Pace

1:15:24

34% of race

Time at Slower Pace

12:49

6% of race

Average Pace: 8:33 /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 mi11:22:5325:228:1025:22
8:10
#17869
10K
6.21 mi11:47:4250:118:0524:49
7:59
#17092
15K
9.32 mi12:12:581:15:278:0625:16
8:08
#17045
20K
12.43 mi12:38:551:41:248:1025:57
8:21
#17100
Half
13.11 mi12:44:311:47:008:105:36
8:12
#17077
25K
15.53 mi13:05:182:07:478:1420:47
8:34
#17117
30K
18.64 mi13:33:172:35:468:2127:59
9:00
#17174
20M
20.00 mi13:45:312:48:008:2412:14
9:00
#17132
21M
21.00 mi13:54:592:57:288:279:28
9:28
#17024
35K
21.75 mi14:01:523:04:218:296:53
9:12
#17122
23M
23.00 mi14:13:143:15:438:3111:22
9:05
#17075
24M
24.00 mi14:22:193:24:488:329:05
9:05
#17121
40K
24.85 mi14:30:103:32:398:337:51
9:11
#17116
25.2M
25.20 mi14:33:313:36:008:343:21
9:43
#17092
Finish
26.22 mi14:41:543:44:238:348:23
8:14
#16989
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi178696263626316980(Top 60%)5724(Top 47%)5724(Top 316%)
10K6.21 mi3.10 mi17092+7775781+4825781+48216397(Top 58%)5367(Top 44%)5367(Top 296%)
15K9.32 mi3.11 mi17045+475744+375744+3716980(Top 60%)5724(Top 47%)5724(Top 316%)
20K12.43 mi3.11 mi17100-555804-605804-6017256(Top 61%)5919(Top 48%)5919(Top 326%)
Half13.11 mi0.68 mi17077+235794+105794+1017376(Top 61%)5975(Top 49%)5975(Top 330%)
25K15.53 mi2.42 mi17117-405835-415835-4117636(Top 62%)6211(Top 51%)6211(Top 343%)
30K18.64 mi3.11 mi17174-575918-835918-8317731(Top 62%)6429(Top 53%)6429(Top 355%)
20M20.00 mi1.36 mi17132+425924-65924-616813(Top 59%)6038(Top 49%)6038(Top 333%)
21M21.00 mi1.00 mi17024+1085892+325892+3215951(Top 56%)5684(Top 46%)5684(Top 314%)
35K21.75 mi0.75 mi17122-985978-865978-8619180(Top 68%)7540(Top 62%)7540(Top 416%)
23M23.00 mi1.25 mi17075+475982-45982-416715(Top 59%)6282(Top 51%)6282(Top 346%)
24M24.00 mi1.00 mi17121-466023-416023-4117806(Top 63%)6926(Top 57%)6926(Top 382%)
40K24.85 mi0.85 mi17116+56054-316054-3117276(Top 61%)6734(Top 55%)6734(Top 371%)
25.2M25.20 mi0.35 mi17092+246057-36057-315746(Top 55%)5957(Top 49%)5957(Top 329%)
Finish26.22 mi1.02 mi16989+1036009+486009+4814478(Top 51%)5201(Top 43%)5201(Top 287%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

16980

Females

5724

F45-49

5724

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

16397

Females

5367

F45-49

5367

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

16980

Females

5724

F45-49

5724

15K→20K

9.3 - 12.4 mi

Top 61%
×5story building
+106ft-86ft

Overall

17256

Females

5919

F45-49

5919

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

17376

Females

5975

F45-49

5975

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

17636

Females

6211

F45-49

6211

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

17731

Females

6429

F45-49

6429

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

16813

Females

6038

F45-49

6038

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

15951

Females

5684

F45-49

5684

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

19180

Females

7540

F45-49

7540

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

16715

Females

6282

F45-49

6282

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

17806

Females

6926

F45-49

6926

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17276

Females

6734

F45-49

6734

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15746

Females

5957

F45-49

5957

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14478

Females

5201

F45-49

5201

Passing Analysis

Category:
Athletes Passed
2386
Passed By
1506
Net Change
+880
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17869
5K → 10K83760+777#17869#17092
10K → 15K221174+47#17092#17045
15K → 20K175230-55#17045#17100
20K → Half4320+23#17100#17077
Half → 25K147187-40#17077#17117
25K → 30K209266-57#17117#17174
30K → 20M12078+42#17174#17132
20M → 21M16254+108#17132#17024
21M → 35K43141-98#17024#17122
35K → 23M12881+47#17122#17075
23M → 24M67113-46#17075#17121
24M → 40K6863+5#17121#17116
40K → 25.2M4622+24#17116#17092
25.2M → Finish12017+103#17092#16989
TOTALS23861506+880
📊

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