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BOSTON MARATHON 2025

Beatriz Akinaga Izidoro

Bib: 22422•F

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0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 42%
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
25:33
Rank: #18270
Start → 5K
25:33 | 8:13/mi
10K· 6.21 mi
51:34
Rank: #18605 (-335)
5K → 10K
26:01 | 8:22/mi
15K· 9.32 mi
1:17:40
Rank: #18606 (-1)
10K → 15K
26:06 | 8:24/mi
20K· 12.43 mi
1:44:04
Rank: #18473 (+133)
15K → 20K
26:24 | 8:30/mi
Half· 13.11 mi
1:49:45
Rank: #18456 (+17)
20K → Half
5:41 | 8:20/mi
25K· 15.53 mi
2:10:30
Rank: #18266 (+190)
Half → 25K
20:45 | 8:33/mi
30K· 18.64 mi
2:38:16
Rank: #18042 (+224)
25K → 30K
27:46 | 8:56/mi
20M
2:50:35
Rank: #17961 (+81)
30K → 20M
12:19 | 9:04/mi
21M
3:00:11
Rank: #17898 (+63)
20M → 21M
9:36 | 9:36/mi
35K· 21.75 mi
3:06:52
Rank: #17870 (+28)
21M → 35K
6:41 | 8:56/mi
23M
3:18:20
Rank: #17809 (+61)
35K → 23M
11:28 | 9:09/mi
24M
3:27:18
Rank: #17747 (+62)
23M → 24M
8:58 | 8:58/mi
40K· 24.85 mi
3:35:10
Rank: #17741 (+6)
24M → 40K
7:52 | 9:12/mi
25.2M
3:38:32
Rank: #17701 (+40)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:47:20
Rank: #17693 (+8)
25.2M → Finish
8:48 | 8:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:45
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time1:57:35
Pace8:58 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:3525:338:1325:33
8:13
-
10K
6.21 mi11:47:3651:348:1826:01
8:22
+0:09
15K
9.32 mi12:13:421:17:408:2026:06
8:24
+0:02
20K
12.43 mi12:40:061:44:048:2226:24
8:30
+0:06
Half
13.11 mi12:45:471:49:458:225:41
8:20
-0:10
25K
15.53 mi13:06:322:10:308:2420:45
8:33
+0:13
30K
18.64 mi13:34:182:38:168:2927:46
8:56
+0:23
20M
20.00 mi13:46:372:50:358:3212:19
9:04
+0:08
21M
21.00 mi13:56:133:00:118:359:36
9:36
+0:32
35K
21.75 mi14:02:543:06:528:366:41
8:56
-0:40
23M
23.00 mi14:14:223:18:208:3711:28
9:09
+0:13
24M
24.00 mi14:23:203:27:188:388:58
8:58
-0:11
40K
24.85 mi14:31:123:35:108:397:52
9:12
+0:14
25.2M
25.20 mi14:34:343:38:328:403:22
9:46
+0:34
Finish
26.22 mi14:43:223:47:208:418:48
8:38
-1:08

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

8:13 /mi

Average Pace

8:41 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:02:43

80% of race

Time at Steady Pace

41:15

18% of race

Time at Slower Pace

3:22

1% of race

Average Pace: 8:40 /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 mi11:21:3525:338:1325:33
8:13
#18270
10K
6.21 mi11:47:3651:348:1826:01
8:22
#18605
15K
9.32 mi12:13:421:17:408:2026:06
8:24
#18606
20K
12.43 mi12:40:061:44:048:2226:24
8:30
#18473
Half
13.11 mi12:45:471:49:458:225:41
8:20
#18456
25K
15.53 mi13:06:322:10:308:2420:45
8:33
#18266
30K
18.64 mi13:34:182:38:168:2927:46
8:56
#18042
20M
20.00 mi13:46:372:50:358:3212:19
9:04
#17961
21M
21.00 mi13:56:133:00:118:359:36
9:36
#17898
35K
21.75 mi14:02:543:06:528:366:41
8:56
#17870
23M
23.00 mi14:14:223:18:208:3711:28
9:09
#17809
24M
24.00 mi14:23:203:27:188:388:58
8:58
#17747
40K
24.85 mi14:31:123:35:108:397:52
9:12
#17741
25.2M
25.20 mi14:34:343:38:328:403:22
9:46
#17701
Finish
26.22 mi14:43:223:47:208:418:48
8:38
#17693
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi182706506650618721(Top 66%)6734(Top 55%)6734(Top 371%)
10K6.21 mi3.10 mi18605-3356678-1726678-17219043(Top 67%)6909(Top 57%)6909(Top 381%)
15K9.32 mi3.11 mi18606-16682-46682-418721(Top 66%)6734(Top 55%)6734(Top 371%)
20K12.43 mi3.11 mi18473+1336606+766606+7618234(Top 64%)6469(Top 53%)6469(Top 357%)
Half13.11 mi0.68 mi18456+176589+176589+1718173(Top 64%)6423(Top 53%)6423(Top 354%)
25K15.53 mi2.42 mi18266+1906508+816508+8117540(Top 62%)6158(Top 50%)6158(Top 340%)
30K18.64 mi3.11 mi18042+2246423+856423+8517358(Top 61%)6223(Top 51%)6223(Top 343%)
20M20.00 mi1.36 mi17961+816400+236400+2317157(Top 60%)6228(Top 51%)6228(Top 344%)
21M21.00 mi1.00 mi17898+636374+266374+2616573(Top 58%)6019(Top 49%)6019(Top 332%)
35K21.75 mi0.75 mi17870+286371+36371+317940(Top 63%)6866(Top 56%)6866(Top 379%)
23M23.00 mi1.25 mi17809+616387-166387-1617153(Top 60%)6531(Top 53%)6531(Top 360%)
24M24.00 mi1.00 mi17747+626395-86395-817207(Top 61%)6596(Top 54%)6596(Top 364%)
40K24.85 mi0.85 mi17741+66410-156410-1517369(Top 61%)6787(Top 56%)6787(Top 374%)
25.2M25.20 mi0.35 mi17701+406399+116399+1115978(Top 56%)6083(Top 50%)6083(Top 336%)
Finish26.22 mi1.02 mi17693+86409-106409-1017108(Top 60%)6613(Top 54%)6613(Top 365%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

18721

Females

6734

F45-49

6734

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

19043

Females

6909

F45-49

6909

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

18721

Females

6734

F45-49

6734

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

18234

Females

6469

F45-49

6469

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

18173

Females

6423

F45-49

6423

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17540

Females

6158

F45-49

6158

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

17358

Females

6223

F45-49

6223

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

17157

Females

6228

F45-49

6228

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

16573

Females

6019

F45-49

6019

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

17940

Females

6866

F45-49

6866

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

17153

Females

6531

F45-49

6531

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

17207

Females

6596

F45-49

6596

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17369

Females

6787

F45-49

6787

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15978

Females

6083

F45-49

6083

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

17108

Females

6613

F45-49

6613

Passing Analysis

Category:
Athletes Passed
2037
Passed By
1460
Net Change
+577
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18270
5K → 10K142477-335#18270#18605
10K → 15K192193-1#18605#18606
15K → 20K254121+133#18606#18473
20K → Half4326+17#18473#18456
Half → 25K26272+190#18456#18266
25K → 30K353129+224#18266#18042
30K → 20M15473+81#18042#17961
20M → 21M13067+63#17961#17898
21M → 35K7850+28#17898#17870
35K → 23M13372+61#17870#17809
23M → 24M11553+62#17809#17747
24M → 40K6155+6#17747#17741
40K → 25.2M5414+40#17741#17701
25.2M → Finish6658+8#17701#17693
TOTALS20371460+577
📊

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