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BOSTON MARATHON 2025

Laura Grant-Poirier

Bib: 20342•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 47%
Masters (Masters Women)
#0 / 6759
Top 35%
Division (F45-49)
#0 / 1813
Top 43%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:00
Rank: #16978
Start → 5K
25:00 | 8:03/mi
10K· 6.21 mi
49:42
Rank: #16510 (+468)
5K → 10K
24:42 | 7:57/mi
15K· 9.32 mi
1:14:23
Rank: #16178 (+332)
10K → 15K
24:41 | 7:57/mi
20K· 12.43 mi
1:40:24
Rank: #16531 (-353)
15K → 20K
26:01 | 8:22/mi
Half· 13.11 mi
1:45:52
Rank: #16504 (+27)
20K → Half
5:28 | 8:01/mi
25K· 15.53 mi
2:05:52
Rank: #16343 (+161)
Half → 25K
20:00 | 8:15/mi
30K· 18.64 mi
2:32:51
Rank: #16213 (+130)
25K → 30K
26:59 | 8:41/mi
20M
2:45:22
Rank: #16302 (-89)
30K → 20M
12:31 | 9:13/mi
21M
2:55:04
Rank: #16304 (-2)
20M → 21M
9:42 | 9:42/mi
35K· 21.75 mi
3:02:06
Rank: #16440 (-136)
21M → 35K
7:02 | 9:24/mi
23M
3:13:22
Rank: #16392 (+48)
35K → 23M
11:16 | 9:00/mi
24M
3:22:10
Rank: #16372 (+20)
23M → 24M
8:48 | 8:48/mi
40K· 24.85 mi
3:29:59
Rank: #16385 (-13)
24M → 40K
7:49 | 9:09/mi
25.2M
3:33:22
Rank: #16393 (-8)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
3:42:36
Rank: #16521 (-128)
25.2M → Finish
9:14 | 9:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:52
Pace8:05 /mi
2nd Half
Distance13.11 mi
Time1:56:44
Pace8:54 /mi
📊Positive Split: 10.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:0425:008:0325:00
8:03
-
10K
6.21 mi11:49:4649:428:0024:42
7:57
-0:06
15K
9.32 mi12:14:271:14:237:5924:41
7:57
0:00
20K
12.43 mi12:40:281:40:248:0526:01
8:22
+0:25
Half
13.11 mi12:45:561:45:528:055:28
8:01
-0:21
25K
15.53 mi13:05:562:05:528:0620:00
8:15
+0:14
30K
18.64 mi13:32:552:32:518:1226:59
8:41
+0:26
20M
20.00 mi13:45:262:45:228:1612:31
9:13
+0:32
21M
21.00 mi13:55:082:55:048:209:42
9:42
+0:29
35K
21.75 mi14:02:103:02:068:227:02
9:24
-0:18
23M
23.00 mi14:13:263:13:228:2411:16
9:00
-0:24
24M
24.00 mi14:22:143:22:108:258:48
8:48
-0:12
40K
24.85 mi14:30:033:29:598:277:49
9:09
+0:21
25.2M
25.20 mi14:33:263:33:228:283:23
9:49
+0:40
Finish
26.22 mi14:42:403:42:368:309:14
9:04
-0:45

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

7:57 /mi

Average Pace

8:30 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:52

57% of race

Time at Steady Pace

56:17

25% of race

Time at Slower Pace

40:27

18% of race

Average Pace: 8:29 /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 mi11:25:0425:008:0325:00
8:03
#16978
10K
6.21 mi11:49:4649:428:0024:42
7:57
#16510
15K
9.32 mi12:14:271:14:237:5924:41
7:57
#16178
20K
12.43 mi12:40:281:40:248:0526:01
8:22
#16531
Half
13.11 mi12:45:561:45:528:055:28
8:01
#16504
25K
15.53 mi13:05:562:05:528:0620:00
8:15
#16343
30K
18.64 mi13:32:552:32:518:1226:59
8:41
#16213
20M
20.00 mi13:45:262:45:228:1612:31
9:13
#16302
21M
21.00 mi13:55:082:55:048:209:42
9:42
#16304
35K
21.75 mi14:02:103:02:068:227:02
9:24
#16440
23M
23.00 mi14:13:263:13:228:2411:16
9:00
#16392
24M
24.00 mi14:22:143:22:108:258:48
8:48
#16372
40K
24.85 mi14:30:033:29:598:277:49
9:09
#16385
25.2M
25.20 mi14:33:263:33:228:283:23
9:49
#16393
Finish
26.22 mi14:42:403:42:368:309:14
9:04
#16521
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi169785727572715639(Top 55%)4932(Top 40%)4932(Top 272%)
10K6.21 mi3.10 mi16510+4685442+2855442+28516086(Top 57%)5174(Top 42%)5174(Top 285%)
15K9.32 mi3.11 mi16178+3325244+1985244+19815639(Top 55%)4932(Top 40%)4932(Top 272%)
20K12.43 mi3.11 mi16531-3535452-2085452-20817395(Top 61%)5999(Top 49%)5999(Top 331%)
Half13.11 mi0.68 mi16504+275440+125440+1216083(Top 57%)5244(Top 43%)5244(Top 289%)
25K15.53 mi2.42 mi16343+1615370+705370+7015630(Top 55%)5090(Top 42%)5090(Top 281%)
30K18.64 mi3.11 mi16213+1305349+215349+2115916(Top 56%)5417(Top 44%)5417(Top 299%)
20M20.00 mi1.36 mi16302-895436-875436-8717835(Top 63%)6609(Top 54%)6609(Top 365%)
21M21.00 mi1.00 mi16304-25473-375473-3717048(Top 60%)6282(Top 51%)6282(Top 346%)
35K21.75 mi0.75 mi16440-1365567-945567-9419958(Top 70%)7949(Top 65%)7949(Top 438%)
23M23.00 mi1.25 mi16392+485567556716259(Top 57%)6033(Top 49%)6033(Top 333%)
24M24.00 mi1.00 mi16372+205591-245591-2416339(Top 58%)6119(Top 50%)6119(Top 338%)
40K24.85 mi0.85 mi16385-135628-375628-3717098(Top 60%)6629(Top 54%)6629(Top 366%)
25.2M25.20 mi0.35 mi16393-85637-95637-916191(Top 57%)6176(Top 51%)6176(Top 341%)
Finish26.22 mi1.02 mi16521-1285739-1025739-10219342(Top 68%)7774(Top 64%)7774(Top 429%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

15639

Females

4932

F45-49

4932

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

16086

Females

5174

F45-49

5174

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

15639

Females

4932

F45-49

4932

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

17395

Females

5999

F45-49

5999

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

16083

Females

5244

F45-49

5244

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

15630

Females

5090

F45-49

5090

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

15916

Females

5417

F45-49

5417

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

17835

Females

6609

F45-49

6609

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

17048

Females

6282

F45-49

6282

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

19958

Females

7949

F45-49

7949

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

16259

Females

6033

F45-49

6033

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

16339

Females

6119

F45-49

6119

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17098

Females

6629

F45-49

6629

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16191

Females

6176

F45-49

6176

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

19342

Females

7774

F45-49

7774

Passing Analysis

Category:
Athletes Passed
2284
Passed By
1827
Net Change
+457
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16978
5K → 10K592124+468#16978#16510
10K → 15K40270+332#16510#16178
15K → 20K118471-353#16178#16531
20K → Half5225+27#16531#16504
Half → 25K23675+161#16504#16343
25K → 30K292162+130#16343#16213
30K → 20M80169-89#16213#16302
20M → 21M105107-2#16302#16304
21M → 35K35171-136#16304#16440
35K → 23M13789+48#16440#16392
23M → 24M9171+20#16392#16372
24M → 40K6881-13#16372#16385
40K → 25.2M2836-8#16385#16393
25.2M → Finish48176-128#16393#16521
TOTALS22841827+457
📊

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