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BOSTON MARATHON 2025

Mahasweta Ghosh

Bib: 22847•F

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

Start
0:00:00
Race begins
5K· 3.11 mi
27:23
Rank: #21585
Start → 5K
27:23 | 8:49/mi
10K· 6.21 mi
54:31
Rank: #21310 (+275)
5K → 10K
27:08 | 8:44/mi
15K· 9.32 mi
1:22:02
Rank: #21275 (+35)
10K → 15K
27:31 | 8:51/mi
20K· 12.43 mi
1:50:01
Rank: #21190 (+85)
15K → 20K
27:59 | 9:00/mi
Half· 13.11 mi
1:56:05
Rank: #21200 (-10)
20K → Half
6:04 | 8:54/mi
25K· 15.53 mi
2:18:29
Rank: #21175 (+25)
Half → 25K
22:24 | 9:14/mi
30K· 18.64 mi
2:48:28
Rank: #21048 (+127)
25K → 30K
29:59 | 9:39/mi
20M
3:01:41
Rank: #20955 (+93)
30K → 20M
13:13 | 9:44/mi
21M
3:12:05
Rank: #20858 (+97)
20M → 21M
10:24 | 10:24/mi
35K· 21.75 mi
3:19:08
Rank: #20839 (+19)
21M → 35K
7:03 | 9:25/mi
23M
3:31:12
Rank: #20751 (+88)
35K → 23M
12:04 | 9:38/mi
24M
3:40:26
Rank: #20661 (+90)
23M → 24M
9:14 | 9:14/mi
40K· 24.85 mi
3:48:25
Rank: #20580 (+81)
24M → 40K
7:59 | 9:20/mi
25.2M
3:51:53
Rank: #20544 (+36)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
4:00:55
Rank: #20497 (+47)
25.2M → Finish
9:02 | 8:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:05
Pace8:51 /mi
2nd Half
Distance13.11 mi
Time2:04:50
Pace9:31 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:5527:238:4927:23
8:49
-
10K
6.21 mi11:52:0354:318:4627:08
8:44
-0:05
15K
9.32 mi12:19:341:22:028:4827:31
8:51
+0:07
20K
12.43 mi12:47:331:50:018:5127:59
9:00
+0:09
Half
13.11 mi12:53:371:56:058:516:04
8:54
-0:06
25K
15.53 mi13:16:012:18:298:5522:24
9:14
+0:20
30K
18.64 mi13:46:002:48:289:0229:59
9:39
+0:25
20M
20.00 mi13:59:133:01:419:0513:13
9:44
+0:05
21M
21.00 mi14:09:373:12:059:0910:24
10:24
+0:40
35K
21.75 mi14:16:403:19:089:097:03
9:25
-0:59
23M
23.00 mi14:28:443:31:129:1112:04
9:38
+0:13
24M
24.00 mi14:37:583:40:269:119:14
9:14
-0:24
40K
24.85 mi14:45:573:48:259:117:59
9:20
+0:06
25.2M
25.20 mi14:49:253:51:539:123:28
10:03
+0:43
Finish
26.22 mi14:58:274:00:559:129:02
8:52
-1:11

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

8:44 /mi

Average Pace

9:12 /mi

Slowest Pace

10:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:47

71% of race

Time at Steady Pace

58:44

24% of race

Time at Slower Pace

10:24

4% of race

Average Pace: 9:11 /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 mi11:24:5527:238:4927:23
8:49
#21585
10K
6.21 mi11:52:0354:318:4627:08
8:44
#21310
15K
9.32 mi12:19:341:22:028:4827:31
8:51
#21275
20K
12.43 mi12:47:331:50:018:5127:59
9:00
#21190
Half
13.11 mi12:53:371:56:058:516:04
8:54
#21200
25K
15.53 mi13:16:012:18:298:5522:24
9:14
#21175
30K
18.64 mi13:46:002:48:289:0229:59
9:39
#21048
20M
20.00 mi13:59:133:01:419:0513:13
9:44
#20955
21M
21.00 mi14:09:373:12:059:0910:24
10:24
#20858
35K
21.75 mi14:16:403:19:089:097:03
9:25
#20839
23M
23.00 mi14:28:443:31:129:1112:04
9:38
#20751
24M
24.00 mi14:37:583:40:269:119:14
9:14
#20661
40K
24.85 mi14:45:573:48:259:117:59
9:20
#20580
25.2M
25.20 mi14:49:253:51:539:123:28
10:03
#20544
Finish
26.22 mi14:58:274:00:559:129:02
8:52
#20497
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi215858397839721319(Top 75%)8177(Top 67%)8177(Top 451%)
10K6.21 mi3.10 mi21310+2758220+1778220+17721083(Top 74%)8066(Top 66%)8066(Top 445%)
15K9.32 mi3.11 mi21275+358186+348186+3421319(Top 75%)8177(Top 67%)8177(Top 451%)
20K12.43 mi3.11 mi21190+858138+488138+4821021(Top 74%)8071(Top 66%)8071(Top 445%)
Half13.11 mi0.68 mi21200-108140-28140-221380(Top 75%)8241(Top 67%)8241(Top 455%)
25K15.53 mi2.42 mi21175+258140814020936(Top 74%)8064(Top 66%)8064(Top 445%)
30K18.64 mi3.11 mi21048+1278114+268114+2620551(Top 72%)7963(Top 65%)7963(Top 439%)
20M20.00 mi1.36 mi20955+938072+428072+4220042(Top 71%)7816(Top 64%)7816(Top 431%)
21M21.00 mi1.00 mi20858+978045+278045+2719717(Top 69%)7751(Top 63%)7751(Top 428%)
35K21.75 mi0.75 mi20839+198052-78052-720067(Top 71%)8017(Top 66%)8017(Top 442%)
23M23.00 mi1.25 mi20751+888024+288024+2819240(Top 68%)7640(Top 62%)7640(Top 421%)
24M24.00 mi1.00 mi20661+907990+347990+3418533(Top 65%)7317(Top 60%)7317(Top 404%)
40K24.85 mi0.85 mi20580+817969+217969+2118051(Top 64%)7155(Top 59%)7155(Top 395%)
25.2M25.20 mi0.35 mi20544+367955+147955+1417342(Top 61%)6792(Top 56%)6792(Top 375%)
Finish26.22 mi1.02 mi20497+477939+167939+1618397(Top 65%)7295(Top 60%)7295(Top 402%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

21319

Females

8177

F45-49

8177

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

21083

Females

8066

F45-49

8066

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

21319

Females

8177

F45-49

8177

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

21021

Females

8071

F45-49

8071

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

21380

Females

8241

F45-49

8241

Half→25K

13.1 - 15.5 mi

Top 74%
×4stories
+66ft-88ft

Overall

20936

Females

8064

F45-49

8064

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

20551

Females

7963

F45-49

7963

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

20042

Females

7816

F45-49

7816

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

19717

Females

7751

F45-49

7751

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

20067

Females

8017

F45-49

8017

35K→23M

21.8 - 23.0 mi

Top 68%
×5stories
+23ft-63ft

Overall

19240

Females

7640

F45-49

7640

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

18533

Females

7317

F45-49

7317

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18051

Females

7155

F45-49

7155

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17342

Females

6792

F45-49

6792

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

18397

Females

7295

F45-49

7295

Passing Analysis

Category:
Athletes Passed
2147
Passed By
1059
Net Change
+1088
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21585
5K → 10K431156+275#21585#21310
10K → 15K233198+35#21310#21275
15K → 20K235150+85#21275#21190
20K → Half2838-10#21190#21200
Half → 25K156131+25#21200#21175
25K → 30K260133+127#21175#21048
30K → 20M14148+93#21048#20955
20M → 21M14952+97#20955#20858
21M → 35K6041+19#20858#20839
35K → 23M13547+88#20839#20751
23M → 24M10616+90#20751#20661
24M → 40K9615+81#20661#20580
40K → 25.2M459+36#20580#20544
25.2M → Finish7225+47#20544#20497
TOTALS21471059+1088
📊

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