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BOSTON MARATHON 2025

Lori Robertson

Bib: 30303•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
9:33/mi
29:41
↑ 97↓ 3451.5%
10K· 6.21 mi
9:01/mi
57:41
↑ 79↓ 1380.4%
15K· 9.32 mi
8:56/mi
1:25:27
↑ 67↓ 78
20K· 12.43 mi
8:53/mi
1:53:03
↑ 106↓ 860.1%
Half· 13.11 mi
8:43/mi
1:59:00
↑ 19↓ 370.5%
25K· 15.53 mi
9:03/mi
2:20:56
↑ 66↓ 880.2%
30K· 18.64 mi
9:49/mi
2:51:27
↑ 181↓ 1480.2%
20M
9:55/mi
3:04:55
↑ 64↓ 500.2%
21M
10:33/mi
3:15:28
↑ 106↓ 241.6%
35K· 21.75 mi
9:40/mi
3:22:42
↑ 17↓ 861.7%
23M
10:45/mi
3:36:09
↑ 23↓ 630.6%
24M
10:11/mi
3:46:20
↓ 821.3%
40K· 24.85 mi
10:32/mi
3:55:20
↓ 200.3%
25.2M
11:53/mi
3:59:26
↑ 13↓ 160.2%
Finish· 26.22 mi
9:46/mi
4:09:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:00
Pace9:05 /mi
2nd Half
Distance13.11 mi
Time2:10:23
Pace9:57 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:3729:419:3329:41
9:33
-
10K
6.21 mi12:18:3757:419:1728:00
9:01
-0:32
15K
9.32 mi12:46:231:25:279:1027:46
8:56
-0:05
20K
12.43 mi13:13:591:53:039:0627:36
8:53
-0:03
Half
13.11 mi13:19:561:59:009:055:57
8:43
-0:10
25K
15.53 mi13:41:522:20:569:0421:56
9:03
+0:20
30K
18.64 mi14:12:232:51:279:1230:31
9:49
+0:46
20M
20.00 mi14:25:513:04:559:1513:28
9:55
+0:06
21M
21.00 mi14:36:243:15:289:1810:33
10:33
+0:38
35K
21.75 mi14:43:383:22:429:197:14
9:40
-0:53
23M
23.00 mi14:57:053:36:099:2413:27
10:45
+1:05
24M
24.00 mi15:07:163:46:209:2610:11
10:11
-0:34
40K
24.85 mi15:16:163:55:209:289:00
10:32
+0:21
25.2M
25.20 mi15:20:223:59:269:304:06
11:53
+1:21
Finish
26.22 mi15:30:194:09:239:319:57
9:46
-2:07

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

8:43 /mi

Average Pace

9:31 /mi

Slowest Pace

11:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:15

45% of race

Time at Steady Pace

1:41:02

41% of race

Time at Slower Pace

37:06

15% of race

Average Pace: 9:31 /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 mi11:50:3729:419:3329:41
9:33
#24427
10K
6.21 mi12:18:3757:419:1728:00
9:01
#23497
15K
9.32 mi12:46:231:25:279:1027:46
8:56
#22959
20K
12.43 mi13:13:591:53:039:0627:36
8:53
#22349
Half
13.11 mi13:19:561:59:009:055:57
8:43
#22253
25K
15.53 mi13:41:522:20:569:0421:56
9:03
#21906
30K
18.64 mi14:12:232:51:279:1230:31
9:49
#21743
20M
20.00 mi14:25:513:04:559:1513:28
9:55
#21667
21M
21.00 mi14:36:243:15:289:1810:33
10:33
#21571
35K
21.75 mi14:43:383:22:429:197:14
9:40
#21545
23M
23.00 mi14:57:053:36:099:2413:27
10:45
#21621
24M
24.00 mi15:07:163:46:209:2610:11
10:11
#21625
40K
24.85 mi15:16:163:55:209:289:00
10:32
#21635
25.2M
25.20 mi15:20:223:59:269:304:06
11:53
#21654
Finish
26.22 mi15:30:194:09:239:319:57
9:46
#21655
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi244279920992021751(Top 77%)8409(Top 69%)8409(Top 464%)
10K6.21 mi3.10 mi23497+9309418+5029418+50222440(Top 79%)8833(Top 72%)8833(Top 487%)
15K9.32 mi3.11 mi22959+5389100+3189100+31821751(Top 77%)8409(Top 69%)8409(Top 464%)
20K12.43 mi3.11 mi22349+6108787+3138787+31320394(Top 72%)7709(Top 63%)7709(Top 425%)
Half13.11 mi0.68 mi22253+968738+498738+4920557(Top 72%)7805(Top 64%)7805(Top 431%)
25K15.53 mi2.42 mi21906+3478553+1858553+18520126(Top 71%)7607(Top 62%)7607(Top 420%)
30K18.64 mi3.11 mi21743+1638480+738480+7321068(Top 74%)8269(Top 68%)8269(Top 456%)
20M20.00 mi1.36 mi21667+768452+288452+2820652(Top 73%)8171(Top 67%)8171(Top 451%)
21M21.00 mi1.00 mi21571+968429+238429+2320190(Top 71%)8017(Top 66%)8017(Top 442%)
35K21.75 mi0.75 mi21545+268426+38426+320925(Top 74%)8468(Top 69%)8468(Top 467%)
23M23.00 mi1.25 mi21621-768504-788504-7822616(Top 80%)9401(Top 77%)9401(Top 519%)
24M24.00 mi1.00 mi21625-48524-208524-2021898(Top 77%)9084(Top 74%)9084(Top 501%)
40K24.85 mi0.85 mi21635-108557-338557-3322010(Top 77%)9201(Top 75%)9201(Top 508%)
25.2M25.20 mi0.35 mi21654-198579-228579-2223014(Top 81%)9657(Top 79%)9657(Top 533%)
Finish26.22 mi1.02 mi21655-18595-168595-1622149(Top 78%)9236(Top 76%)9236(Top 509%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21751

Females

8409

F45-49

8409

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22440

Females

8833

F45-49

8833

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21751

Females

8409

F45-49

8409

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20394

Females

7709

F45-49

7709

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

20557

Females

7805

F45-49

7805

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20126

Females

7607

F45-49

7607

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

21068

Females

8269

F45-49

8269

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

20652

Females

8171

F45-49

8171

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

20190

Females

8017

F45-49

8017

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

20925

Females

8468

F45-49

8468

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

22616

Females

9401

F45-49

9401

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

21898

Females

9084

F45-49

9084

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

22010

Females

9201

F45-49

9201

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

23014

Females

9657

F45-49

9657

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

22149

Females

9236

F45-49

9236

Passing Analysis

Category:
Athletes Passed
3418
Passed By
646
Net Change
+2772
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24427
5K → 10K95222+930#24427#23497
10K → 15K54911+538#23497#22959
15K → 20K6188+610#22959#22349
20K → Half960+96#22349#22253
Half → 25K36417+347#22253#21906
25K → 30K282119+163#21906#21743
30K → 20M13256+76#21743#21667
20M → 21M13034+96#21667#21571
21M → 35K5933+26#21571#21545
35K → 23M69145-76#21545#21621
23M → 24M4953-4#21621#21625
24M → 40K5363-10#21625#21635
40K → 25.2M1938-19#21635#21654
25.2M → Finish4647-1#21654#21655
TOTALS3418646+2772
📊

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